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 1-6 of 6 results.

A222610 Number of nX2 0..3 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..3 order.

Original entry on oeis.org

1, 1, 3, 12, 40, 149, 615, 2659, 11641, 51672, 231598, 1044550, 4729221, 21473854, 97727797, 445587611, 2034814173, 9304775285, 42600153350, 195249156987, 895771869115, 4113392176083, 18904548916567, 86949854091897
Offset: 1

Views

Author

R. H. Hardin Feb 26 2013

Keywords

Comments

Column 2 of A222616

Examples

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

A222611 Number of n X 3 0..3 arrays with no more than floor(n X 3/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..3 order.

Original entry on oeis.org

1, 3, 5, 65, 181, 3545, 11421, 243955, 829319, 17592855, 61952605, 1284213397, 4662579053, 94370045311, 351914237859, 6970771357553, 26611889407629, 517258600443449, 2015559262618275, 38540189430369807, 152866542948213595
Offset: 1

Views

Author

R. H. Hardin, Feb 26 2013

Keywords

Comments

Column 3 of A222616.

Examples

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

Crossrefs

Cf. A222616.

A222612 Number of nX4 0..3 arrays with no more than floor(nX4/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..3 order.

Original entry on oeis.org

4, 12, 65, 567, 5746, 85511, 1409334, 23117220, 385330520, 6476514601, 108758391488, 1826675971872, 30708013301383, 516416025560708, 8686858217305854, 146176023166781075, 2460556661008587521
Offset: 1

Views

Author

R. H. Hardin Feb 26 2013

Keywords

Comments

Column 4 of A222616

Examples

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

A222613 Number of nX5 0..3 arrays with no more than floor(nX5/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..3 order.

Original entry on oeis.org

5, 40, 181, 5746, 60550, 2921905, 43650470, 2748085305, 44499006072, 2935039880037, 48422176002273, 3217634669353437, 53258617891960804, 3541270168065327366, 58695105162011373774, 3902182230284175940378
Offset: 1

Views

Author

R. H. Hardin Feb 26 2013

Keywords

Comments

Column 5 of A222616

Examples

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

A222614 Number of nX6 0..3 arrays with no more than floor(nX6/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..3 order.

Original entry on oeis.org

14, 149, 3545, 85511, 2921905, 118162369, 5996281816, 346754406852, 21456580709691, 1373306350646075, 89477984746618739, 5875770793367315401, 386959176729149206835, 25518458960278102529389, 1684014920622795463665019
Offset: 1

Views

Author

R. H. Hardin Feb 26 2013

Keywords

Comments

Column 6 of A222616

Examples

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

A222615 Number of nX7 0..3 arrays with no more than floor(nX7/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..3 order.

Original entry on oeis.org

17, 615, 11421, 1409334, 43650470, 5996281816, 253864183756, 50378849363475, 2844661497709464, 693856544236239459, 43788284924757109026, 11378443951727769866855
Offset: 1

Views

Author

R. H. Hardin Feb 26 2013

Keywords

Comments

Column 7 of A222616

Examples

			Some solutions for n=3
..0..0..0..1..2..2..2....0..1..1..2..2..2..2....0..1..1..1..1..1..1
..0..3..2..2..2..2..2....0..3..2..2..2..2..2....0..1..1..1..1..1..1
..0..2..2..2..2..2..2....2..2..2..2..2..2..2....2..1..2..1..1..1..1
		
Showing 1-6 of 6 results.