A296973 Number of nX7 0..1 arrays with each 1 adjacent to 2, 4 or 5 king-move neighboring 1s.

1, 323, 2958, 29590, 711867, 12662763, 222799447, 4440619952, 87137716095, 1708442840981, 34048678798399, 679037887566575, 13548991431561885, 270968659711631836, 5421703961198183535, 108504417044589648385

Offset

1,2

Comments

Column 7 of A296974.

Links

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

Example

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

Crossrefs

Cf. A296974.

Sequence in context: A252452 A202610 A094394 * A213289 A094409 A253708

Adjacent sequences: A296970 A296971 A296972 * A296974 A296975 A296976

Keyword

nonn

Author

R. H. Hardin, Dec 22 2017

Status

approved