cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-10 of 10 results.

A219436 Unmatched value maps: number of nX3 binary arrays indicating the locations of corresponding elements not equal to any horizontal, diagonal or antidiagonal neighbor in a random 0..1 nX3 array.

Original entry on oeis.org

4, 18, 78, 329, 1396, 5925, 25147, 106731, 452984, 1922547, 8159665, 34631193, 146981443, 623817540, 2647601755, 11236931619, 47691701338, 202412762994, 859078738551, 3646095572825, 15474731627673, 65677740521441
Offset: 1

Views

Author

R. H. Hardin Nov 20 2012

Keywords

Comments

Column 3 of A219441

Examples

			Some solutions for n=3
..0..0..0....1..0..1....0..0..0....1..1..1....1..0..1....0..0..1....0..0..1
..0..0..0....0..0..1....0..0..1....1..1..1....0..0..0....0..0..0....0..0..0
..0..0..1....0..0..1....1..0..1....1..1..1....1..0..1....0..1..0....1..0..1
		

Formula

Empirical: a(n) = 4*a(n-1) +a(n-2) +a(n-3) -2*a(n-4) -6*a(n-5) -3*a(n-6) -2*a(n-7) +5*a(n-8) +4*a(n-9) -2*a(n-10) -2*a(n-11)

A219437 Unmatched value maps: number of nX4 binary arrays indicating the locations of corresponding elements not equal to any horizontal, diagonal or antidiagonal neighbor in a random 0..1 nX4 array.

Original entry on oeis.org

7, 39, 281, 1750, 11283, 72272, 465400, 2995163, 19264275, 123892153, 796864416, 5125652937, 32969253934, 212061980660, 1364004538375, 8773442559359, 56431907119815, 362977142538622, 2334713999344447, 15017169783617850
Offset: 1

Views

Author

R. H. Hardin Nov 20 2012

Keywords

Comments

Column 4 of A219441

Examples

			Some solutions for n=3
..1..0..0..0....0..0..1..1....0..0..0..0....0..0..0..1....1..0..0..0
..0..0..0..1....1..0..0..0....1..0..0..1....0..0..0..0....0..0..0..0
..1..0..0..1....1..0..0..0....1..0..0..0....1..0..0..1....0..0..1..1
		

Formula

Empirical: a(n) = 8*a(n-1) -12*a(n-2) +6*a(n-3) +77*a(n-4) -184*a(n-5) -385*a(n-6) +137*a(n-7) +1716*a(n-8) +983*a(n-9) -3491*a(n-10) -525*a(n-11) +2567*a(n-12) -7634*a(n-13) +5725*a(n-14) +1489*a(n-15) +3574*a(n-16) +1516*a(n-17) -12799*a(n-18) +706*a(n-19) -3864*a(n-20) +7628*a(n-21) +8580*a(n-22) -6068*a(n-23) -1312*a(n-24) +160*a(n-25) +224*a(n-26) +48*a(n-27)

A219438 Unmatched value maps: number of nX5 binary arrays indicating the locations of corresponding elements not equal to any horizontal, diagonal or antidiagonal neighbor in a random 0..1 nX5 array.

Original entry on oeis.org

12, 96, 1072, 10157, 98584, 952625, 9230353, 89418051, 865738604, 8382034095, 81160468697, 785871654803, 7609490388891, 73681292305272, 713442897702121, 6908151296019613, 66890527908145736, 647690255888809878
Offset: 1

Views

Author

R. H. Hardin Nov 20 2012

Keywords

Comments

Column 5 of A219441

Examples

			Some solutions for n=3
..1..0..0..0..0....1..0..0..0..0....1..0..1..0..0....1..0..0..0..0
..1..0..1..0..0....0..0..0..0..0....0..0..0..0..0....1..0..0..1..0
..1..1..1..0..1....0..1..0..0..0....0..0..1..0..0....0..0..0..1..1
		

A219439 Unmatched value maps: number of nX6 binary arrays indicating the locations of corresponding elements not equal to any horizontal, diagonal or antidiagonal neighbor in a random 0..1 nX6 array.

Original entry on oeis.org

21, 225, 4033, 57249, 844553, 12323337, 180983751, 2656615237, 38958452805, 571246999054, 8377493560653, 122869945358060, 1802067766211909, 26429403407143030, 387617125521945071, 5684873531729895393
Offset: 1

Views

Author

R. H. Hardin Nov 20 2012

Keywords

Comments

Column 6 of A219441

Examples

			Some solutions for n=3
..1..0..0..1..0..0....0..0..0..1..0..1....1..0..0..1..0..1....1..0..0..0..0..0
..1..0..0..1..0..1....1..0..0..0..0..1....0..0..0..0..0..0....0..0..1..0..0..0
..0..0..0..1..1..1....0..0..1..0..0..0....0..1..0..1..0..0....1..0..1..1..0..0
		

A219440 Unmatched value maps: number of nX7 binary arrays indicating the locations of corresponding elements not equal to any horizontal, diagonal or antidiagonal neighbor in a random 0..1 nX7 array.

Original entry on oeis.org

37, 543, 15255, 326938, 7285283, 160436482, 3553813654, 78682793897, 1739719764661, 38456568548417, 850199779863242, 18798233014587802, 415629248838802678, 9189326940591712179, 203170331059931678345
Offset: 1

Views

Author

R. H. Hardin Nov 20 2012

Keywords

Comments

Column 7 of A219441

Examples

			Some solutions for n=3
..0..0..0..1..0..1..0....0..0..0..0..1..0..0....1..0..0..0..0..1..1
..1..0..0..0..0..0..0....0..1..0..0..1..0..0....0..0..0..1..0..1..1
..1..0..0..0..1..0..1....0..0..0..0..1..0..0....0..1..0..1..1..1..1
		

A219442 Unmatched value maps: number of 4Xn binary arrays indicating the locations of corresponding elements not equal to any horizontal, diagonal or antidiagonal neighbor in a random 0..1 4Xn array.

Original entry on oeis.org

1, 47, 329, 1750, 10157, 57249, 326938, 1871991, 10717083, 61406130, 351621409, 2013957691, 11534261710, 66064401075, 378390334671, 2167284760374, 12413363760441, 71098932771545, 407227101232548, 2332439882554127
Offset: 1

Views

Author

R. H. Hardin Nov 20 2012

Keywords

Comments

Row 4 of A219441

Examples

			Some solutions for n=3
..0..0..1....1..0..0....1..0..1....0..0..0....1..0..0....1..1..1....0..0..0
..1..0..1....0..0..1....0..0..0....0..0..1....0..0..0....1..0..1....1..0..1
..0..1..0....0..0..1....0..0..1....0..0..1....0..0..1....0..0..0....1..1..1
..0..0..0....1..0..1....0..0..0....0..0..0....0..0..1....1..0..0....1..1..1
		

A219443 Unmatched value maps: number of 5Xn binary arrays indicating the locations of corresponding elements not equal to any horizontal, diagonal or antidiagonal neighbor in a random 0..1 5Xn array.

Original entry on oeis.org

1, 134, 1396, 11283, 98584, 844553, 7285283, 63351821, 550075610, 4785295684, 41593658285, 361645238004, 3144201225435, 27338782908435, 237713376159763, 2066953339295080, 17972428400647700, 156272292427772867
Offset: 1

Views

Author

R. H. Hardin Nov 20 2012

Keywords

Comments

Row 5 of A219441

Examples

			Some solutions for n=3
..0..0..1....1..0..1....0..0..1....0..0..0....0..0..0....1..1..1....0..0..1
..0..0..0....1..0..0....1..0..1....0..1..0....0..0..1....0..0..0....1..0..1
..0..0..1....0..0..1....0..0..1....0..1..0....0..0..0....0..0..0....1..0..0
..0..0..1....0..0..0....0..0..0....0..0..0....1..0..1....0..0..1....1..0..1
..1..0..1....0..0..0....0..0..0....1..0..0....1..0..0....1..0..0....0..0..1
		

A219444 Unmatched value maps: number of 6Xn binary arrays indicating the locations of corresponding elements not equal to any horizontal, diagonal or antidiagonal neighbor in a random 0..1 6Xn array.

Original entry on oeis.org

1, 373, 5925, 72272, 952625, 12323337, 160436482, 2108558055, 27677084295, 364053375316, 4784797859949, 62906482762978, 827009838462183, 10873593600515732, 142970759857336082, 1879861240861922703
Offset: 1

Views

Author

R. H. Hardin Nov 20 2012

Keywords

Comments

Row 6 of A219441

Examples

			Some solutions for n=3
..1..0..0....1..1..1....0..0..1....0..0..0....0..0..1....0..0..0....0..0..0
..1..0..0....1..0..1....0..0..1....0..0..0....1..0..1....0..1..0....1..0..0
..0..0..1....0..0..0....0..0..0....0..0..0....0..0..0....1..0..1....0..0..0
..1..0..1....0..0..0....1..0..0....0..0..0....1..0..0....0..0..1....1..0..1
..1..0..1....0..0..0....0..0..1....0..0..1....0..0..0....1..0..0....1..1..1
..1..0..0....0..0..0....1..0..0....0..0..0....0..0..0....1..0..0....1..1..1
		

A219435 Unmatched value maps: number of n X n binary arrays indicating the locations of corresponding elements not equal to any horizontal, diagonal or antidiagonal neighbor in a random 0..1 n X n array.

Original entry on oeis.org

1, 6, 78, 1750, 98584, 12323337, 3553813654, 2370435069040, 3599403810329586
Offset: 1

Views

Author

R. H. Hardin Nov 20 2012

Keywords

Comments

Diagonal of A219441

Examples

			Some solutions for n=3
..1..0..1....1..1..1....1..0..0....1..0..1....1..0..0....0..0..0....0..0..0
..0..0..1....0..0..0....0..0..0....0..0..1....0..0..1....0..0..0....1..0..1
..1..0..0....0..0..0....0..0..1....0..0..1....1..0..1....1..1..1....1..1..1
		

A219445 Unmatched value maps: number of 7Xn binary arrays indicating the locations of corresponding elements not equal to any horizontal, diagonal or antidiagonal neighbor in a random 0..1 7Xn array.

Original entry on oeis.org

1, 1035, 25147, 465400, 9230353, 180983751, 3553813654, 70729832177, 1404298087609, 27962151080194, 556217340268058
Offset: 1

Views

Author

R. H. Hardin Nov 20 2012

Keywords

Comments

Row 7 of A219441

Examples

			Some solutions for n=3
..1..0..1....1..0..1....1..0..1....0..0..0....1..0..0....1..0..0....0..0..1
..0..0..0....0..0..0....0..0..0....1..0..0....1..0..1....1..0..1....0..0..0
..0..0..1....1..0..1....0..0..0....1..0..1....0..0..1....1..0..0....1..0..1
..1..0..0....1..0..1....0..0..1....1..0..0....1..0..0....0..0..1....1..0..0
..1..0..0....1..0..0....1..0..1....0..0..0....0..0..0....0..0..1....1..0..0
..1..0..1....0..0..0....0..1..0....0..0..0....0..1..0....1..0..1....1..0..1
..1..1..1....0..1..0....0..0..0....0..1..0....1..1..1....1..0..0....1..1..1
		
Showing 1-10 of 10 results.