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 13 results. Next

A222980 Number of nX2 0..2 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

Original entry on oeis.org

1, 4, 14, 70, 326, 1630, 8058, 40598, 204914, 1041934, 5315674, 27228710, 139873618, 720480478, 3719466954, 19240428310, 99703918274, 517480871374, 2689599901242, 13996937063430, 72925251133490, 380345069219262, 1985607474867114
Offset: 1

Views

Author

R. H. Hardin Mar 11 2013

Keywords

Comments

Column 2 of A222986

Examples

			Some solutions for n=3
..0..1....0..0....0..0....0..0....0..0....0..0....0..1....0..0....0..0....0..0
..0..0....0..0....0..0....1..2....0..0....1..0....2..2....0..0....0..1....0..1
..0..0....1..1....1..2....2..2....1..0....0..0....2..2....0..1....0..0....1..1
		

A222981 Number of nX3 0..2 arrays with no more than floor(nX3/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

Original entry on oeis.org

1, 7, 43, 584, 2903, 45718, 227569, 3706702, 18721501, 309335666, 1578160193, 26302908158, 135163043693, 2266015930226, 11706886012409, 197109806616950, 1022513778146405, 17272771472939290, 89894465367630385
Offset: 1

Views

Author

R. H. Hardin Mar 11 2013

Keywords

Comments

Column 3 of A222986

Examples

			Some solutions for n=3
..0..1..1....0..0..0....0..1..2....0..0..1....0..0..0....0..0..0....0..0..0
..1..1..1....0..0..0....1..1..1....0..1..1....0..0..1....0..0..0....0..0..1
..1..1..2....0..1..0....1..1..1....1..1..1....2..2..2....0..0..0....1..2..2
		

A222982 Number of nX4 0..2 arrays with no more than floor(nX4/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

Original entry on oeis.org

4, 25, 314, 4572, 68385, 1037326, 15904038, 245900395, 3827698634, 59908716776, 941887270541, 14864346253334, 235333007557546, 3736059988845399, 59453991638435810, 948103358514285732, 15147172497271220257
Offset: 1

Views

Author

R. H. Hardin Mar 11 2013

Keywords

Comments

Column 4 of A222986

Examples

			Some solutions for n=3
..0..0..0..0....0..0..0..1....0..0..1..1....0..1..2..2....0..0..0..0
..0..0..0..1....0..0..0..2....2..2..1..1....0..2..2..2....0..0..0..1
..0..0..0..2....0..0..1..1....1..1..1..1....2..2..2..2....0..1..1..0
		

A222983 Number of nX5 0..2 arrays with no more than floor(nX5/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

Original entry on oeis.org

5, 86, 946, 42607, 601407, 29158784, 433151066, 21273422658, 321537852228, 15962124223493, 243618393075038, 12191944518185381, 187365274532722190, 9431672015100973078, 145707088669056298444, 7366673315370322548085
Offset: 1

Views

Author

R. H. Hardin Mar 11 2013

Keywords

Comments

Column 5 of A222986

Examples

			Some solutions for n=3
..0..1..1..1..1....0..0..1..2..2....0..0..0..0..1....0..0..0..1..2
..2..2..1..1..1....0..0..2..2..2....0..0..0..0..1....0..1..2..2..2
..1..1..1..1..1....1..2..2..2..2....0..0..0..0..0....2..2..2..2..2
		

A222984 Number of nX6 0..2 arrays with no more than floor(nX6/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

Original entry on oeis.org

14, 332, 10417, 414907, 18382319, 850056406, 40023605408, 1903529869999, 91157172642893, 4388669494918325, 212209908225464512, 10298901249351263312, 501394386349411633499, 24476441088511176209393, 1197699146026402680275552
Offset: 1

Views

Author

R. H. Hardin Mar 11 2013

Keywords

Comments

Column 6 of A222986

Examples

			Some solutions for n=3
..0..0..0..0..1..0....0..1..0..1..1..0....0..1..1..2..2..2....0..0..0..1..2..2
..0..0..2..0..0..0....1..1..1..1..1..1....2..1..2..2..2..2....0..0..0..1..2..2
..2..2..0..0..0..0....1..1..1..1..1..1....1..1..2..2..2..2....0..1..2..2..2..2
		

A222985 Number of n X 7 0..2 arrays with no more than floor(n*7/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

Original entry on oeis.org

17, 1172, 36987, 4405097, 183010307, 26345532486, 1202086792105, 180821359299832, 8463651301168857, 1290846776123480411, 61103325028133094620, 9391211217321900719984, 447723422606405342204055
Offset: 1

Views

Author

R. H. Hardin, Mar 11 2013

Keywords

Examples

			Some solutions for n=3:
..0..1..0..1..1..1..1....0..0..0..0..0..1..1....0..1..0..2..2..2..2
..1..1..0..1..1..1..1....0..0..0..0..0..1..1....2..0..2..2..2..2..2
..1..1..2..1..1..1..1....0..0..0..1..0..0..1....2..1..2..2..2..2..2
		

Crossrefs

Column 7 of A222986.

A222987 Number of 2Xn 0..2 arrays with no more than floor(2Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

Original entry on oeis.org

2, 4, 7, 25, 86, 332, 1172, 4566, 16562, 64718, 238856, 933970, 3493494, 13656426, 51627746, 201696470, 768828322, 3002421486, 11518434130, 44975259758, 173404040458, 677168068918, 2621003912178, 10238867982150, 39750857800978
Offset: 1

Views

Author

R. H. Hardin Mar 11 2013

Keywords

Comments

Row 2 of A222986

Examples

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

A222988 Number of 3Xn 0..2 arrays with no more than floor(3Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

Original entry on oeis.org

5, 14, 43, 314, 946, 10417, 36987, 431995, 1588033, 18801286, 69943017, 834028084, 3124625123, 37457769214, 141096804709, 1698224538010, 6424372900737, 77564926861208, 294441267192765, 3563869328626666, 13566837259043749
Offset: 1

Views

Author

R. H. Hardin Mar 11 2013

Keywords

Comments

Row 3 of A222986

Examples

			Some solutions for n=3
..0..0..0....0..0..0....0..0..0....0..0..1....0..0..0....0..1..0....0..0..0
..0..0..0....0..0..1....0..0..1....0..0..0....0..0..1....0..0..0....0..0..0
..1..0..1....1..0..0....0..1..1....0..0..0....0..2..2....0..0..0....0..0..1
		

A222989 Number of 4Xn 0..2 arrays with no more than floor(4Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

Original entry on oeis.org

14, 70, 584, 4572, 42607, 414907, 4405097, 48718472, 555780434, 6416259672, 74903319364, 877918502428, 10342543515649, 122102452706949, 1445864757738121, 17149126185134333, 203824031565924979
Offset: 1

Views

Author

R. H. Hardin Mar 11 2013

Keywords

Comments

Row 4 of A222986

Examples

			Some solutions for n=3
..0..0..0....0..0..0....0..1..1....0..1..1....0..0..1....0..1..2....0..0..0
..0..0..0....0..0..0....1..1..0....1..1..1....0..0..1....2..0..0....0..0..1
..0..1..2....0..1..1....2..2..2....1..1..0....2..1..1....0..0..0....0..0..2
..1..2..2....1..1..1....2..2..2....2..2..2....1..1..1....0..0..0....0..2..2
		

A222990 Number of 5Xn 0..2 arrays with no more than floor(5Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

Original entry on oeis.org

41, 326, 2903, 68385, 601407, 18382319, 183010307, 6204558968, 67324595334, 2417855348421, 27468992157986, 1009779221908166, 11708053404874825, 434647589200480262, 5088442449600194895, 189831985201117802057
Offset: 1

Views

Author

R. H. Hardin Mar 11 2013

Keywords

Comments

Row 5 of A222986

Examples

			Some solutions for n=3
..0..0..0....0..0..1....0..1..0....0..1..1....0..0..0....0..0..1....0..0..1
..1..0..2....1..2..2....0..0..0....1..1..1....0..0..1....1..0..1....1..0..0
..1..1..1....2..1..1....0..0..0....1..1..1....2..1..0....2..2..2....0..1..1
..1..1..1....1..1..1....1..0..0....0..1..1....0..2..2....2..2..2....1..1..1
..1..1..1....1..1..1....0..0..0....0..1..1....2..2..2....2..2..2....1..1..1
		
Showing 1-10 of 13 results. Next