A222507 Number of nX6 0..1 arrays with exactly floor(nX6/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order.
4, 32, 170, 1753, 17674, 195968, 2220730, 25587208, 297738400, 3488244716, 41065342664, 485089112208, 5747074198174, 68246839505398, 812175659130854, 9682643419696866, 115625719032846238, 1382757381681066972
Offset: 1
Keywords
Examples
Some solutions for n=3 ..0..0..1..0..0..0....0..0..0..0..0..0....0..0..1..1..1..0....0..0..0..0..0..0 ..0..0..0..0..0..1....0..0..0..0..1..1....1..1..1..1..1..1....0..0..0..0..0..0 ..0..0..0..0..0..0....0..0..0..0..0..0....1..1..1..1..1..1....1..0..0..1..0..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..57
Comments