A184205 Number of (n+1) X 8 binary arrays with no 2 X 2 subblock containing fewer than two 1's.
10179, 850155, 57909336, 4255603649, 306055720601, 22178227663588, 1603508113421239, 116023864377980183, 8393076073326616738, 607195930632715485287, 43926429646009509917693, 3177799102996723675846736
Offset: 1
Keywords
Examples
Some solutions for 3 X 8 ..0..0..1..1..0..1..1..0....0..0..0..0..0..1..1..1....0..0..1..1..1..1..0..0 ..1..1..0..1..1..1..0..1....1..1..1..1..1..0..1..1....1..1..1..1..0..1..1..1 ..1..1..1..1..1..1..1..1....0..0..1..1..0..1..1..0....1..1..0..1..0..1..0..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..200
Crossrefs
Cf. A184207.
Comments