A305958 Number of nX5 0..1 arrays with every element unequal to 1, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

3, 383, 6030, 129452, 2617757, 53422574, 1088558635, 22189910134, 452276452312, 9218639135097, 187900225772877, 3829905130323491, 78063630127839669, 1591143994770553837, 32431737782972079014, 661044899592922139812

Offset

1,1

Comments

Column 5 of A305961.

Links

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

Example

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

Crossrefs

Cf. A305961.

Sequence in context: A160192 A304424 A316279 * A317219 A305689 A317069

Adjacent sequences: A305955 A305956 A305957 * A305959 A305960 A305961

Keyword

nonn

Author

R. H. Hardin, Jun 15 2018

Status

approved