A299658 Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.
16, 512, 11888, 297071, 7411398, 185302633, 4634931975, 115940148451, 2900256951630, 72550765755149, 1814880621999624, 45399839444130818, 1135692126141775248, 28409717970065456461, 710678591596437046213
Offset: 1
Keywords
Examples
Some solutions for n=5 ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0 ..0..0..1..1..1. .0..0..1..1..1. .0..0..1..1..1. .0..0..1..0..1 ..0..0..0..0..1. .1..0..1..1..1. .1..1..1..0..0. .1..0..1..0..0 ..0..1..1..0..0. .0..0..1..0..1. .0..0..0..1..1. .1..0..0..1..0 ..1..0..1..1..0. .0..0..1..0..0. .1..0..0..0..0. .0..1..1..0..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
- R. H. Hardin, Empirical recurrence of order 89
Crossrefs
Cf. A299661.
Formula
Empirical recurrence of order 89 (see link above)
Comments