A298084 Number of nX5 0..1 arrays with every element equal to 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.
0, 11, 1, 28, 154, 520, 1574, 7204, 28790, 105055, 437163, 1792603, 6981116, 28580319, 115795593, 464405679, 1883192839, 7625910371, 30781567549, 124586304213, 504301473498, 2038932788749, 8250005089404, 33384996732923
Offset: 1
Keywords
Examples
Some solutions for n=7 ..0..0..1..0..0. .0..0..1..0..0. .0..0..0..0..0. .0..0..0..1..1 ..0..0..1..1..0. .0..1..0..1..0. .0..0..0..0..0. .0..1..1..0..1 ..1..1..1..1..1. .1..0..0..0..1. .1..1..0..1..1. .0..1..0..0..1 ..1..0..1..0..1. .1..0..0..0..1. .1..0..0..1..0. .0..0..1..1..1 ..0..0..0..0..1. .0..1..0..1..0. .0..0..0..0..0. .1..1..1..1..0 ..0..1..0..1..1. .1..0..0..1..0. .1..0..0..1..1. .0..1..1..0..0 ..1..1..0..0..1. .1..1..1..0..0. .1..1..0..1..1. .0..0..1..1..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Crossrefs
Cf. A298087.
Comments