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.

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A188752 Number of 7Xn binary arrays without the pattern 1 1 1 diagonally, vertically or antidiagonally.

Original entry on oeis.org

81, 6561, 289776, 15398676, 828466161, 43558358008, 2307086087740, 122293738629021, 6476421031528420, 343061756270359870, 18173221774555803823, 962672885162309091074, 50995334218704721900811
Offset: 1

Views

Author

R. H. Hardin Apr 09 2011

Keywords

Comments

Row 7 of A188747

Examples

			Some solutions for 7X3
..0..1..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..1....0..0..0
..0..0..0....1..1..1....1..1..1....0..0..0....0..1..1....0..1..0....1..1..1
..1..1..0....1..0..1....0..1..1....1..1..0....0..0..0....0..1..1....0..0..0
..0..0..0....0..0..0....0..0..0....0..0..0....0..1..0....0..0..0....0..1..1
..0..0..0....0..0..0....0..0..0....0..1..1....1..1..0....0..1..0....1..1..0
..0..0..1....0..0..0....0..1..0....1..0..0....0..0..1....0..0..1....0..0..0
..1..0..1....1..0..0....1..1..1....0..0..0....1..1..1....0..0..0....0..1..1

Links

A188753 Number of 8 X n binary arrays without the pattern 1 1 1 diagonally, vertically or antidiagonally.

Original entry on oeis.org

149, 22201, 1617326, 148041805, 13666030547, 1229158478968, 111642244016936, 10143499802360135, 920790924506170069, 83620597537361329902, 7594234703661480583759, 689675447630925638390079
Offset: 1

Views

Author

R. H. Hardin, Apr 09 2011

Keywords

Comments

Row 8 of A188747.

Examples

			Some solutions for 8 X 3
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..0..1....0..0..1....0..0..1....0..0..0....0..0..0....0..0..1....0..0..0
..0..0..0....1..1..0....0..0..1....0..1..1....0..0..1....0..1..1....1..1..1
..1..1..1....0..1..1....1..0..0....0..0..0....0..0..1....0..0..0....1..0..1
..1..0..0....0..0..0....0..0..0....0..1..1....1..0..0....0..1..1....0..0..0
..0..0..0....1..0..0....0..1..0....0..1..0....1..1..0....0..1..0....1..1..1
..1..0..0....0..1..0....0..0..1....0..0..0....0..1..0....0..0..1....0..0..1
..0..1..1....1..0..0....1..0..0....0..0..0....1..0..0....1..1..0....1..0..0

Links

Crossrefs

Cf. A188747.

A188740 Number of n X n binary arrays without the pattern 1 1 1 diagonally, vertically or antidiagonally.

Original entry on oeis.org

2, 16, 292, 17286, 3283906, 1536573216, 2307086087740, 10143499802360135, 123466985032906186049, 4528058434298770108386326, 481947777827695507476795332215, 147455854241909275954639647341005231
Offset: 1

Views

Author

R. H. Hardin Apr 09 2011

Keywords

Comments

Diagonal of A188747

Examples

			Some solutions for 3X3
..0..0..0....0..1..1....0..0..0....0..0..0....1..0..0....0..1..0....1..0..0
..1..0..0....1..0..0....0..1..1....1..1..1....0..1..1....0..0..0....0..0..0
..0..0..0....1..0..0....1..1..1....0..0..0....0..0..0....0..1..0....1..1..1
Previous Showing 11-13 of 13 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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