A230672 Number of n X 5 0..2 arrays x(i,j) with each element horizontally, diagonally or antidiagonally next to at least one element with value 2-x(i,j).
15, 3387, 340563, 37034355, 4022141121, 436827078531, 47444197636239, 5152946201086569, 559664961809994753, 60785594007085980027, 6601964808003397959249, 717043900743978231419349
Offset: 1
Keywords
Examples
Some solutions for n=3 ..0..0..2..1..1....0..0..0..1..1....0..0..1..1..1....0..0..2..1..2 ..2..2..1..1..0....1..2..2..0..2....2..2..1..0..2....1..2..0..0..1 ..2..0..0..2..1....0..1..0..2..0....0..2..0..1..1....0..1..1..1..2
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
- R. H. Hardin, Empirical recurrence of order 80
Crossrefs
Cf. A230675.
Formula
Empirical recurrence of order 80 (see link above).
Comments