A299051 Number of nX7 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.

21, 348, 1542, 76068, 953445, 29176924, 888675946, 23405238642, 693920505214, 21037340897708, 603764830153053, 17934063108751557, 534096869604892352, 15674627896951182550, 464308514446686398318, 13757814178967296681530

Offset

1,1

Comments

Column 7 of A299052.

Links

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

Example

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

Crossrefs

Cf. A299052.

Sequence in context: A298153 A299127 A299885 * A299813 A299688 A300320

Adjacent sequences: A299048 A299049 A299050 * A299052 A299053 A299054

Keyword

nonn

Author

R. H. Hardin, Feb 01 2018

Status

approved