A296038 Number of n X 7 0..1 arrays with each 1 adjacent to 2 or 4 king-move neighboring 1's.

1, 271, 2266, 15399, 285366, 3650122, 39608385, 518787061, 6686146382, 81902283398, 1032256490947, 13096735519428, 164428864143823, 2070803545260672, 26150087072053258, 329684472487581670

Offset

1,2

Comments

Column 7 of A296039.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=5
..0..1..0..0..0..0..1. .0..0..1..0..0..0..0. .0..1..1..0..0..0..0
..0..1..1..0..0..1..1. .0..1..0..1..0..1..1. .0..0..1..0..1..1..0
..0..0..0..0..0..1..1. .0..1..0..1..0..1..0. .0..0..0..0..1..0..0
..0..0..0..1..0..1..0. .0..1..0..0..1..0..1. .0..1..0..1..0..1..0
..0..0..1..1..0..1..1. .0..0..1..1..0..1..0. .1..1..0..0..1..0..0

Crossrefs

Cf. A296039.

Sequence in context: A038655 A108835 A185668 * A287232 A332978 A214012

Adjacent sequences: A296035 A296036 A296037 * A296039 A296040 A296041

Keyword

nonn

Author

R. H. Hardin, Dec 03 2017

Status

approved