A266135 Number of 5Xn integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors exactly one smaller than itself.
1, 189, 2099, 4336, 62104, 1285961, 16386099, 124675418, 1670106261, 27030614673, 364728678843, 4110151431884, 55582288536407, 820578817704699, 11258792567726911, 142486826279283951, 1934013157303232327
Offset: 1
Keywords
Examples
Some solutions for n=4 ..2..1..1..1....1..0..0..1....1..2..1..1....1..0..1..2....2..1..0..1 ..2..1..0..0....1..1..1..1....0..0..0..1....2..1..1..2....2..1..1..0 ..1..3..2..0....1..1..1..1....0..2..1..1....0..1..2..2....2..3..2..2 ..0..0..2..1....1..0..0..2....1..2..2..1....2..2..1..2....0..1..1..2 ..0..0..0..1....0..2..1..1....0..0..0..0....0..1..1..0....1..0..1..2
Links
- R. H. Hardin, Table of n, a(n) for n = 1..83
Crossrefs
Cf. A266131.
Comments