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A304666
Number of nX5 0..1 arrays with every element unequal to 0, 1, 3, 5 or 6 king-move adjacent elements, with upper left element zero.
1
8, 53, 66, 249, 832, 1926, 5311, 15604, 41101, 113581, 322499, 878867, 2424634, 6783680, 18692607, 51620360, 143530053, 396942014, 1097506347, 3043745061, 8426485347, 23316586078, 64599682220, 178884708707, 495183784333
OFFSET
1,1
COMMENTS
Column 5 of A304669.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..1..0. .0..1..1..1..0. .0..1..1..0..0. .0..1..0..0..0
..1..0..0..0..0. .1..1..1..0..0. .1..1..1..1..0. .0..0..0..0..1
..0..0..0..0..0. .1..1..1..1..1. .1..1..1..1..1. .0..0..0..0..0
..1..1..0..0..0. .1..1..1..1..0. .1..1..1..1..1. .1..0..0..1..1
..0..1..0..1..0. .1..1..1..1..1. .1..1..0..1..1. .1..1..0..1..0
CROSSREFS
Cf. A304669.
Sequence in context: A304928 A305344 A316612 * A306169 A316424 A317426
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 16 2018
STATUS
approved