A297658 Number of 5Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 3 neighboring 1s.
1, 454, 9033, 113252, 2525244, 56630842, 1075678445, 21111073411, 431729675719, 8661860619988, 172481732429072, 3459368740976069, 69421866008508425, 1390069610625497582, 27843303573923481669, 558020746500279361494
Offset: 1
Keywords
Examples
Some solutions for n=4 ..1..1..0..0. .1..1..1..0. .1..1..1..0. .0..0..1..1. .1..1..0..0 ..0..0..1..1. .0..0..1..0. .1..1..0..1. .0..1..1..1. .1..0..1..0 ..0..0..0..0. .0..1..0..0. .0..0..0..0. .1..0..0..0. .1..0..0..0 ..0..0..1..0. .0..1..1..1. .0..1..1..0. .1..1..0..0. .0..1..1..1 ..0..1..0..0. .1..0..0..0. .1..1..1..0. .0..0..1..0. .0..1..1..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Crossrefs
Cf. A297654.
Comments