A229844 Number of nX5 0..2 arrays x(i,j) with each element horizontally or vertically next to at least one element with value 2-x(i,j).
15, 2247, 178311, 15269193, 1296261759, 110203382331, 9366963651897, 796197119067381, 67676718934477599, 5752525261171518051, 488964895071793945731, 41562038669326401752469, 3532775185416959988138093
Offset: 1
Keywords
Examples
Some solutions for n=3 ..0..2..2..0..1....0..2..2..2..2....0..2..1..1..1....1..1..2..0..1 ..2..0..0..1..1....1..1..0..0..0....0..0..1..0..1....1..1..1..2..1 ..0..1..1..1..1....2..0..2..0..2....2..0..1..2..1....2..0..1..0..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Comments