A316922 Number of nX5 0..1 arrays with every element unequal to 0, 1, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

8, 57, 81, 594, 6339, 40938, 428394, 5627600, 59111561, 653510991, 7872875734, 90410447616, 1032001594525, 12065317289672, 140150925763626, 1619474150808880, 18812676516585732, 218536710130432428

Offset

1,1

Comments

Column 5 of A316925.

Links

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

Example

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

Crossrefs

Cf. A316925.

Sequence in context: A316236 A317157 A305646 * A317040 A317694 A143570

Adjacent sequences: A316919 A316920 A316921 * A316923 A316924 A316925

Keyword

nonn

Author

R. H. Hardin, Jul 16 2018

Status

approved