A284338 Number of 5 X n 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.
16, 134, 2243, 70039, 1792007, 53435287, 1495300322, 45518653024, 1328555331356, 40798892221235, 1220007716469208, 37635151585010843, 1142550719106245636, 35365628106723989270, 1084498116514868629899, 33665846562146310363380
Offset: 1
Keywords
Examples
Some solutions for n=4 ..0..0..1..0. .0..1..1..0. .0..0..1..0. .0..1..0..0. .0..1..1..1 ..1..1..1..0. .1..0..1..0. .0..1..0..0. .1..0..1..0. .1..0..0..0 ..1..0..0..0. .0..1..1..1. .0..1..1..1. .1..1..1..0. .0..0..1..0 ..1..1..1..0. .0..0..0..0. .0..1..1..1. .0..1..1..1. .1..1..0..0 ..1..1..1..0. .1..1..1..0. .1..0..1..1. .0..1..0..0. .0..1..1..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..55
Crossrefs
Cf. A284334.
Comments