A266107 Number of 7Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors exactly one smaller than itself.
1, 715, 16428, 145274, 3899732, 192212829, 6206090116, 152827600335, 4549421529660, 155911464809823, 4886310110586327, 144366563589225015, 4437049095870031448, 139852556937264083906, 4337839455375825257187
Offset: 1
Keywords
Examples
Some solutions for n=4 ..0..0..0..1....1..0..0..1....1..0..0..1....0..0..1..2....1..0..1..2 ..1..2..1..2....1..1..1..0....0..0..1..2....0..2..1..2....0..2..1..0 ..0..0..1..2....2..1..0..1....0..1..1..2....0..0..1..2....0..2..1..2 ..0..1..1..0....2..1..1..1....1..0..1..2....0..2..1..2....0..2..1..0 ..2..1..0..0....1..0..0..1....1..1..1..2....0..0..1..2....0..1..1..1 ..1..0..0..1....0..0..1..1....0..0..1..1....0..1..1..0....2..1..0..1 ..1..1..1..0....1..2..0..1....1..2..0..1....2..1..0..1....2..1..2..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..40
Crossrefs
Cf. A266101.
Comments