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.

A189774 Number of n X 4 binary arrays without the pattern 1 0 0 1 diagonally, vertically or horizontally.

Original entry on oeis.org

15, 225, 3375, 37976, 418550, 4461435, 48633913, 530389481, 5817065520, 63680392402, 697353409375, 7631111846379, 83521134087527, 914046929969572, 10004056595349672, 109490279695417318, 1198342710234669673
Offset: 1

Views

Author

R. H. Hardin Apr 27 2011

Keywords

Comments

Column 4 of A189779.

Examples

			Some solutions for 5 X 4
..0..0..0..0....0..0..0..0....0..0..0..1....0..0..0..1....0..0..1..0
..0..1..0..1....1..1..1..1....0..0..0..1....1..1..0..0....1..0..1..0
..0..0..0..1....0..1..0..1....0..0..0..1....0..1..1..0....1..0..1..0
..1..1..0..0....0..0..1..1....0..1..0..1....1..1..1..0....0..0..1..0
..0..1..0..1....0..1..1..1....0..1..0..0....1..0..0..0....0..1..0..1

Links

Crossrefs

Cf. A189779.

A189775 Number of nX5 binary arrays without the pattern 1 0 0 1 diagonally, vertically or horizontally.

Original entry on oeis.org

28, 784, 21952, 418550, 7767740, 136521398, 2475199422, 44835555921, 819898395901, 14951509967629, 272888201632045, 4974385897878190, 90702815452479941, 1653551877098790941, 30149461492149942101
Offset: 1

Views

Author

R. H. Hardin Apr 27 2011

Keywords

Comments

Column 5 of A189779

Examples

			Some solutions for 6X5
..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..0..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....0..1..0..0..0....1..0..0..0..1....0..0..0..0..1
..0..0..1..0..0....0..0..0..0..0....0..0..1..0..0....1..1..0..0..0
..1..1..0..1..1....0..1..0..0..0....0..1..0..1..0....0..0..0..0..1
..1..1..1..0..0....0..1..0..1..0....0..0..1..0..0....1..0..0..0..1

Links

A189776 Number of nX6 binary arrays without the pattern 1 0 0 1 diagonally, vertically or horizontally.

Original entry on oeis.org

52, 2704, 140608, 4461435, 136521398, 3848548036, 112831587094, 3292640179737, 97500493294819, 2875530570969513, 84985322553211150, 2506681235723278913, 73977340086823664092, 2182270990001902317787, 64391876501073035366505
Offset: 1

Views

Author

R. H. Hardin Apr 27 2011

Keywords

Comments

Column 6 of A189779

Examples

			Some solutions for 5X6
..0..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..0..0..0....0..1..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0
..0..1..0..0..0..0....0..1..0..0..0..0....0..1..0..1..0..0....0..0..1..0..0..0
..0..0..1..1..0..0....0..1..1..0..0..0....1..0..1..1..0..0....0..1..0..0..0..0
..0..0..0..1..0..0....1..1..1..1..0..1....1..1..1..1..0..0....1..1..1..1..1..1

Links

A189777 Number of nX7 binary arrays without the pattern 1 0 0 1 diagonally, vertically or horizontally.

Original entry on oeis.org

97, 9409, 912673, 48633913, 2475199422, 112831587094, 5404382625660, 256681706358532, 12454322928575313, 600861626029136589, 29098233597048811000, 1404753215113899124268, 67882068723678010867189
Offset: 1

Views

Author

R. H. Hardin Apr 27 2011

Keywords

Comments

Column 7 of A189779

Examples

			Some solutions for 5X7
..0..0..0..0..0..0..0....0..0..0..0..0..0..0....0..0..0..0..0..0..0
..1..1..1..0..0..0..0....0..0..0..0..0..0..0....1..0..1..0..0..0..0
..1..0..1..1..0..0..0....1..1..1..1..1..0..0....1..1..1..0..0..0..0
..1..1..1..0..0..0..0....0..0..0..0..0..0..0....1..0..1..0..0..0..0
..1..1..1..1..0..0..0....1..1..1..0..1..0..0....0..0..0..0..0..0..0

Links

A189778 Number of nX8 binary arrays without the pattern 1 0 0 1 diagonally, vertically or horizontally.

Original entry on oeis.org

181, 32761, 5929741, 530389481, 44835555921, 3292640179737, 256681706358532, 19742364192283882, 1563337091301143920, 122856570846133660189, 9713292881930768378666, 764499527960618934733556
Offset: 1

Views

Author

R. H. Hardin Apr 27 2011

Keywords

Comments

Column 8 of A189779

Examples

			Some solutions for 5X8
..0..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..0..0..0..0..0....1..0..0..0..0..0..0..0....1..0..0..0..0..0..0..0
..0..1..1..1..0..0..0..0....1..0..1..1..0..0..0..0....0..1..1..0..0..0..0..0
..0..0..0..0..0..0..0..0....0..0..1..0..0..0..0..0....1..1..1..0..0..0..0..0
..0..0..0..0..0..1..1..1....1..1..0..0..0..0..0..1....0..1..1..1..1..1..0..0

Links

A189773 Number of n X n binary arrays without the pattern 1 0 0 1 diagonally, vertically or horizontally.

Original entry on oeis.org

2, 16, 512, 37976, 7767740, 3848548036, 5404382625660, 19742364192283882, 203905576411742503606, 5585800755853929115668714
Offset: 1

Views

Author

R. H. Hardin Apr 27 2011

Keywords

Comments

Diagonal of A189779

Examples

			Some solutions for 5X5
..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....0..0..0..0..1....0..0..1..0..0....0..0..0..0..0
..1..1..0..1..0....0..1..0..1..0....0..0..1..1..1....0..1..0..1..0
..1..0..1..0..1....1..0..1..0..1....0..1..0..0..0....1..1..1..0..0
..1..1..0..1..1....1..0..1..0..0....1..1..1..1..0....1..0..0..0..1
Showing 1-6 of 6 results.

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