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

A285145 Number of n X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.

Original entry on oeis.org

0, 2, 113, 11574, 4551741, 7586120602, 52105131287528, 1469435682255774972, 168943399492409779855098, 78854409689567939731003347822, 148970519290227262688309540510302237
Offset: 1

Views

Author

R. H. Hardin, Apr 12 2017

Keywords

Comments

Diagonal of A285152.

Examples

			Some solutions for n=4
..1..0..0..1. .0..1..1..1. .0..1..0..1. .0..1..1..0. .0..1..1..1
..0..1..0..0. .1..1..0..0. .0..1..1..1. .0..0..0..0. .0..1..1..0
..0..1..1..0. .0..1..0..0. .1..0..0..0. .1..1..1..0. .0..0..1..0
..1..1..1..1. .1..0..1..0. .0..0..1..0. .1..1..0..1. .0..1..1..1

Links

Crossrefs

Cf. A285152.

A285146 Number of n X 2 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.

Original entry on oeis.org

0, 2, 12, 56, 236, 950, 3752, 14684, 57192, 222308, 863808, 3357766, 13061980, 50859826, 198235896, 773453896, 3020781528, 11809145656, 46207264696, 180955506800, 709219185000, 2781727573396, 10918267462160, 42882371536718
Offset: 1

Views

Author

R. H. Hardin, Apr 12 2017

Keywords

Comments

Column 2 of A285152.

Examples

			Some solutions for n=4
..0..0. .0..0. .0..1. .0..1. .0..1. .0..1. .1..0. .1..1. .1..1. .0..0
..0..0. .1..0. .1..0. .0..0. .0..0. .0..1. .0..0. .0..0. .0..0. .1..0
..0..1. .0..1. .0..0. .0..1. .1..1. .0..1. .1..0. .0..0. .1..0. .1..0
..0..0. .1..0. .1..0. .1..0. .0..0. .0..0. .0..1. .1..0. .0..0. .1..0

Links

Crossrefs

Cf. A285152.

A285147 Number of n X 3 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.

Original entry on oeis.org

1, 14, 113, 786, 5742, 42176, 314197, 2359900, 17852820, 135811506, 1037931930, 7962744490, 61286318733, 473008466100, 3659466705689, 28371299519552, 220366440810204, 1714457590259554, 13358188660727160, 104218249427651818
Offset: 1

Views

Author

R. H. Hardin, Apr 12 2017

Keywords

Comments

Column 3 of A285152.

Examples

			Some solutions for n=4
..1..0..0. .0..1..1. .0..0..0. .1..1..0. .1..1..1. .1..1..1. .0..1..0
..0..0..1. .0..0..1. .1..0..1. .0..0..0. .1..1..0. .1..0..0. .1..1..1
..0..0..0. .0..0..1. .0..1..0. .0..0..0. .0..0..0. .0..1..1. .0..0..0
..1..1..0. .0..0..0. .1..0..0. .1..0..1. .1..0..1. .0..1..0. .1..0..0

Links

Crossrefs

Cf. A285152.

A285148 Number of n X 4 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.

Original entry on oeis.org

2, 58, 820, 11574, 166624, 2446130, 36367674, 545774302, 8250020936, 125432428398, 1916089561276, 29385041758324, 452142438975318, 6976767708453156, 107918789132352190, 1672896226875572812
Offset: 1

Views

Author

R. H. Hardin, Apr 12 2017

Keywords

Comments

Column 4 of A285152.

Examples

			Some solutions for n=4
..0..1..0..1. .0..1..0..0. .1..1..1..1. .1..0..0..0. .1..1..1..0
..0..0..1..1. .0..0..0..1. .0..0..1..0. .0..1..0..1. .0..0..1..0
..0..1..0..0. .1..1..1..1. .0..0..0..1. .0..1..1..0. .0..0..1..1
..1..0..0..1. .0..0..0..1. .0..1..0..1. .0..1..1..0. .0..1..1..0

Links

Crossrefs

Cf. A285152.

A285149 Number of n X 5 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.

Original entry on oeis.org

6, 210, 5773, 159060, 4551741, 133021570, 3943470769, 118107656722, 3565079136422, 108275389928358, 3304826405091975, 101285844489502404, 3114902710241515255, 96075818781510092444, 2970858080098454495490, 92067497140321063171414, 2858719791977116301069177
Offset: 1

Views

Author

R. H. Hardin, Apr 12 2017

Keywords

Examples

			Some solutions for n=4
..1..0..1..1..1. .0..1..0..0..1. .0..1..1..0..0. .0..0..0..0..1
..0..0..0..1..1. .1..1..0..0..1. .0..0..1..1..0. .1..0..0..0..1
..0..1..0..0..1. .0..1..0..1..0. .0..1..1..1..0. .0..0..1..0..0
..0..0..0..1..0. .1..0..1..1..0. .1..0..1..0..0. .0..1..1..1..1

Links

Crossrefs

Column 5 of A285152.

A285150 Number of n X 6 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.

Original entry on oeis.org

12, 788, 41620, 2284666, 130177958, 7586120602, 448765516394, 26835088076336, 1617833226931330, 98162644393835350, 5986867868512286798, 366688625275190421692, 22539277474000422961920, 1389618057538273118730236
Offset: 1

Views

Author

R. H. Hardin, Apr 12 2017

Keywords

Comments

Column 6 of A285152.

Examples

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

Links

Crossrefs

Cf. A285152.

A285151 Number of n X 7 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.

Original entry on oeis.org

28, 2960, 305641, 33371602, 3791298670, 440991447842, 52105131287528, 6225574564196248, 750114767208917980, 90975657693849154282, 11092032874536180348798, 1358239186819948863498546
Offset: 1

Views

Author

R. H. Hardin, Apr 12 2017

Keywords

Comments

Column 7 of A285152.

Examples

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

Links

Crossrefs

Cf. A285152.

A285153 Number of 2 X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.

Original entry on oeis.org

0, 2, 14, 58, 210, 788, 2960, 11168, 42402, 161856, 619864, 2381342, 9174202, 35432030, 137146164, 531899380, 2066518438, 8041414956, 31335774120, 122265661844, 477610788400, 1867692035114, 7310704019360, 28641893196882
Offset: 1

Views

Author

R. H. Hardin, Apr 12 2017

Keywords

Comments

Row 2 of A285152.

Examples

			Some solutions for n=4
..0..0..1..0. .1..1..0..1. .1..1..0..0. .0..0..0..1. .0..0..1..0
..1..0..1..0. .0..0..0..0. .0..0..0..0. .1..0..0..1. .1..0..0..0

Links

Crossrefs

Cf. A285152.

A285154 Number of 3 X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.

Original entry on oeis.org

0, 12, 113, 820, 5773, 41620, 305641, 2274080, 17114289, 129576988, 987231526, 7551235806, 57992581744, 446683948074, 3450295188177, 26710836161850, 207217760171898, 1610393410029550, 12535446041119817, 97715224210141008
Offset: 1

Views

Author

R. H. Hardin, Apr 12 2017

Keywords

Comments

Row 3 of A285152.

Examples

			Some solutions for n=4
..1..1..1..1. .0..0..1..0. .1..0..1..0. .0..1..1..0. .0..1..0..0
..1..1..1..0. .1..0..1..0. .0..1..1..1. .0..0..1..1. .1..1..0..0
..0..0..0..1. .0..1..1..0. .0..0..0..0. .0..1..1..0. .1..0..1..1

Links

Crossrefs

Cf. A285152.

A285155 Number of 4 X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.

Original entry on oeis.org

0, 56, 786, 11574, 159060, 2284666, 33371602, 495256266, 7426444716, 112236717358, 1706444466326, 26070175620594, 399870502837122, 6153779131538066, 94972379110894900, 1469319459956729810
Offset: 1

Views

Author

R. H. Hardin, Apr 12 2017

Keywords

Comments

Row 4 of A285152.

Examples

			Some solutions for n=4
..1..0..0..1. .0..0..1..0. .0..0..1..0. .1..1..0..1. .0..0..1..1
..0..1..0..1. .0..1..0..1. .0..0..0..0. .0..0..1..0. .0..0..1..1
..0..1..1..1. .0..1..0..0. .1..0..1..1. .0..0..1..1. .0..0..1..0
..0..0..0..0. .1..1..0..1. .1..0..0..1. .0..0..1..1. .0..0..1..1

Links

Crossrefs

Cf. A285152.
Showing 1-10 of 13 results. Next

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