A303466 Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
16, 384, 5237, 79377, 1243692, 19374638, 302023677, 4716032889, 73624207904, 1149438505997, 17947141691999, 280223342646902, 4375382787383338, 68317349274051360, 1066710022825715053, 16655668791240232192
Offset: 1
Keywords
Examples
Some solutions for n=5 ..0..0..0..0..0. .0..0..0..0..1. .0..0..0..0..0. .0..0..0..0..0 ..0..0..1..1..0. .1..1..0..1..1. .1..1..1..1..1. .0..1..1..0..1 ..0..1..0..0..1. .1..1..0..0..0. .0..0..0..1..0. .0..1..0..0..1 ..1..0..1..1..0. .0..1..0..0..0. .1..1..0..1..1. .0..1..1..0..0 ..1..0..0..1..1. .0..1..0..1..1. .0..0..1..0..1. .1..1..1..0..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
- R. H. Hardin, Empirical recurrence of order 93
Crossrefs
Cf. A303469.
Formula
Empirical recurrence of order 93 (see link above)
Comments