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.
64, 8192, 976132, 116529645, 13965759339, 1673515027797, 200493397340704, 24020147098755633, 2877772423900833546, 344775872442750250950, 41306367066392211719403, 4948768734344656216522215
Offset: 1
Keywords
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
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Crossrefs
Cf. A303421.
Comments