A284197 Number of n X 6 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.
19, 455, 18842, 1001047, 54333131, 3083244672, 178138187113, 10468760423253, 622301968698475, 37339790561577376, 2256975037851499153, 137242646380023688189, 8386798450042067878075, 514631022193968182602408
Offset: 1
Keywords
Examples
Some solutions for n=3 ..0..1..0..1..1..0. .0..0..0..1..1..0. .0..1..1..0..0..1. .0..1..0..1..0..0 ..0..1..1..1..0..0. .0..1..1..0..0..1. .1..1..0..0..0..0. .0..1..1..1..1..1 ..0..1..0..1..0..0. .0..1..1..0..1..1. .1..0..1..0..1..1. .0..0..0..1..0..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..53
Crossrefs
Cf. A284199.
Comments