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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A297319 Number of 6Xn 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 1 or 2 neighboring 1s.

Original entry on oeis.org

1, 616, 16389, 223995, 6623719, 200646607, 4893232934, 123820581049, 3282367305458, 85515734535996, 2212616825808470, 57500163901287398, 1495338053514246125, 38856248352062385594, 1009626165673776079481
Offset: 1

Views

Author

R. H. Hardin, Dec 28 2017

Keywords

Comments

Row 6 of A297314.

Examples

			Some solutions for n=5
..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..1. .0..0..0..1..1
..0..1..1..0..1. .0..0..1..1..0. .1..1..0..1..1. .0..0..0..1..0
..1..0..1..1..0. .0..1..0..1..1. .0..1..0..1..1. .0..1..0..0..0
..1..1..0..0..1. .1..1..1..0..1. .1..1..0..1..1. .1..1..1..1..1
..0..1..1..1..0. .0..0..0..1..1. .1..0..0..0..0. .0..0..0..0..0

Links

Crossrefs

Cf. A297314.

A297320 Number of 7Xn 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 1 or 2 neighboring 1s.

Original entry on oeis.org

1, 1897, 85041, 1717882, 90535227, 4869858862, 197589351469, 8462603863772, 387143404127578, 17208423873690915, 757092974470971658, 33594816998930823407, 1491858261000140438998, 66127149761814467849317
Offset: 1

Views

Author

R. H. Hardin, Dec 28 2017

Keywords

Comments

Row 7 of A297314.

Examples

			Some solutions for n=5
..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..0..0..1. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..1..1
..0..1..0..1..0. .0..0..1..1..1. .0..1..0..0..0. .0..1..0..1..0
..1..1..0..0..0. .0..1..0..1..0. .1..1..1..0..0. .1..0..0..0..0
..1..1..1..0..0. .1..0..0..1..1. .0..0..0..0..0. .0..0..0..0..0
..0..0..0..1..1. .0..0..0..1..0. .0..1..1..1..1. .0..0..1..1..1

Links

Crossrefs

Cf. A297314.
Previous Showing 11-12 of 12 results.

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

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