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A316754
Number of nX5 0..1 arrays with every element unequal to 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
1
3, 27, 79, 37, 642, 3366, 4397, 25154, 137845, 309382, 1206207, 5904494, 17498116, 61651672, 267672528, 908607719, 3166116692, 12672266364, 45619974681, 161089019345, 615680573625, 2264002238286, 8118105866800, 30312478695463
OFFSET
1,1
COMMENTS
Column 5 of A316757.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..1..1. .0..0..0..1..1. .0..0..1..1..1. .0..1..0..0..0
..0..1..1..0..1. .0..1..0..0..0. .1..1..1..0..1. .1..0..0..1..0
..1..1..1..1..1. .0..0..0..0..0. .1..1..1..1..1. .0..0..0..0..0
..1..1..1..1..0. .1..0..0..0..1. .0..1..1..0..1. .0..0..0..1..0
..0..0..1..1..0. .0..1..0..1..0. .1..0..1..1..0. .1..1..0..0..0
CROSSREFS
Cf. A316757.
Sequence in context: A302275 A302725 A166102 * A045491 A318908 A343135
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 12 2018
STATUS
approved