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A306169
Number of nX5 0..1 arrays with every element unequal to 0, 1, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
1
8, 53, 66, 249, 832, 1956, 5421, 15993, 42682, 118773, 341634, 940420, 2616566, 7413719, 20635659, 57534784, 161865923, 452342333, 1263392559, 3543306258, 9914165346, 27719300656, 77641186448, 217307212078, 607908389285
OFFSET
1,1
COMMENTS
Column 5 of A306172.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..1. .0..0..0..0..0. .0..1..1..1..1. .0..1..1..0..1
..1..0..0..0..0. .0..0..0..0..1. .1..1..1..1..1. .1..1..1..1..1
..1..1..0..0..0. .0..0..0..0..0. .1..1..1..1..1. .1..1..1..1..1
..0..0..0..0..0. .0..0..0..1..1. .0..1..1..1..0. .1..1..0..1..1
..1..0..0..0..0. .1..0..0..0..1. .0..0..1..1..1. .0..1..0..0..1
CROSSREFS
Cf. A306172.
Sequence in context: A305344 A316612 A304666 * A316424 A317426 A212754
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 23 2018
STATUS
approved