A299450 Number of nX7 0..1 arrays with every element equal to 0, 1, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero.
21, 64, 11, 161, 546, 804, 6326, 19745, 39495, 290364, 855008, 2191987, 14241405, 41451856, 129702347, 739374632, 2206681686, 7939800765, 40476006538, 126433675843, 496773451920, 2321391370041, 7652725646418, 31537376314083
Offset: 1
Keywords
Examples
Some solutions for n=5 ..0..0..1..0..1..0..1. .0..1..1..1..0..1..0. .0..1..0..1..0..1..0 ..1..1..1..1..1..1..0. .0..1..1..1..0..1..0. .1..0..0..0..0..0..1 ..1..1..1..0..0..0..0. .1..1..1..1..0..0..0. .0..0..0..1..1..1..1 ..0..0..1..0..0..0..1. .0..1..1..1..0..1..0. .1..0..0..1..1..1..0 ..0..0..1..0..0..0..1. .0..1..1..1..0..1..0. .1..0..0..1..1..1..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..177
Crossrefs
Cf. A299451.
Comments