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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A303426 Number of 7Xn 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Original entry on oeis.org

64, 8192, 976132, 116529645, 13965759339, 1673515027797, 200493397340704, 24020147098755633, 2877772423900833546, 344775872442750250950, 41306367066392211719403, 4948768734344656216522215
Offset: 1

Views

Author

R. H. Hardin, Apr 23 2018

Keywords

Comments

Row 7 of A303421.

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..1..1..0. .0..0..1..1..0. .0..0..1..1..0. .0..0..1..1..0
..0..0..0..1..1. .0..0..0..1..0. .0..0..0..1..0. .0..0..0..0..1
..0..1..1..0..0. .1..0..1..1..1. .0..1..1..1..1. .1..1..0..0..0
..0..1..1..1..1. .1..0..1..0..1. .0..1..1..1..0. .1..1..1..1..1
..0..0..1..0..0. .0..1..1..0..1. .1..1..1..0..1. .0..1..1..1..0
		

Crossrefs

Cf. A303421.
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