A300087 Number of nX6 0..1 arrays with every element equal to 0, 1, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
13, 32, 6, 98, 533, 1822, 13646, 64560, 292356, 1935206, 8977877, 47025964, 277252018, 1342509714, 7412660838, 41080319424, 209198027664, 1166155310631, 6311894489681, 33391174168101, 185469661266839, 1001589651401307
Offset: 1
Keywords
Examples
Some solutions for n=5 ..0..0..0..0..0..1. .0..0..0..1..1..0. .0..0..0..1..1..0. .0..0..1..1..1..0 ..0..0..0..0..0..1. .0..0..0..1..1..0. .0..0..0..1..1..0. .0..0..1..1..1..0 ..0..0..1..0..0..0. .0..0..0..0..0..0. .0..0..0..0..0..0. .0..0..1..1..1..1 ..0..0..0..0..1..0. .1..1..0..0..1..0. .0..0..0..0..1..0. .1..1..1..0..0..1 ..0..0..0..0..1..0. .1..1..0..0..1..0. .0..0..0..0..1..0. .1..1..1..0..0..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Crossrefs
Cf. A300089.
Comments