A240646 Number of nX5 0..1 arrays with no element equal to the same number of vertical neighbors as horizontal neighbors, with new values 0..1 introduced in row major order.
3, 6, 23, 61, 232, 953, 4343, 19458, 90165, 421048, 1984496, 9408853, 44826507, 214397042, 1027671976, 4934720969, 23725826486, 114171204929, 549741892899, 2648230058688, 12761166119581, 61506635738385, 296498879827182
Offset: 1
Keywords
Examples
Some solutions for n=4 ..0..1..0..0..1....0..1..0..1..0....0..0..0..0..0....0..1..0..1..1 ..0..1..1..1..1....0..1..0..1..0....1..0..0..0..1....0..1..0..0..0 ..0..1..1..1..1....1..0..1..0..1....1..0..1..0..1....0..0..0..0..1 ..0..1..0..0..1....1..0..1..0..1....1..0..1..0..1....0..1..1..0..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Comments