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A304140
Number of nX7 0..1 arrays with every element unequal to 0, 2, 3 or 6 king-move adjacent elements, with upper left element zero.
1
1, 99, 33, 25, 135, 34, 48, 785, 96, 164, 5607, 688, 1198, 43126, 7146, 13284, 344363, 85130, 174124, 2842665, 1101826, 2429578, 24588566, 15000202, 34580418, 227836525, 209686868, 495041722, 2307698343, 2968753906, 7098677686
OFFSET
1,2
COMMENTS
Column 7 of A304141.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..1..1..0..1. .0..0..1..0..0..0..1. .0..1..1..0..1..1..0
..1..1..0..1..0..0..0. .0..0..1..1..0..1..0. .1..0..0..1..0..0..1
..1..0..0..0..0..0..1. .0..0..0..0..0..0..1. .1..1..1..1..1..1..1
..0..0..0..1..0..1..1. .0..0..1..0..0..1..0. .1..0..1..1..1..0..1
..1..0..1..1..0..0..0. .0..0..1..1..0..0..1. .0..1..0..0..0..1..0
CROSSREFS
Cf. A304141.
Sequence in context: A246222 A309232 A360376 * A305046 A316732 A033419
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 07 2018
STATUS
approved