A285749 Number of n X 7 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.
28, 2042, 250592, 25450414, 3020617824, 341001631140, 40895629554933, 4828422171183992, 584834466962677402, 70587405158150794666, 8620918536843418223386, 1053438370876757943161204
Offset: 1
Keywords
Examples
Some solutions for n=2 ..1..0..0..0..1..0..1. .0..1..0..1..0..0..0. .1..1..1..0..1..0..0 ..1..0..1..0..0..1..0. .1..1..1..1..0..0..1. .0..1..0..0..1..0..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..25
Crossrefs
Cf. A285750.
Comments