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A297985
Number of nX7 0..1 arrays with every element equal to 0, 2, 3 or 6 king-move adjacent elements, with upper left element zero.
1
1, 94, 21, 79, 105, 242, 444, 935, 1835, 3921, 8793, 19694, 44948, 102048, 235955, 545484, 1264620, 2932659, 6807942, 15840667, 36867513, 85882218, 200113634, 466535260, 1088021475, 2538033638, 5921858545, 13819429210, 32254710106
OFFSET
1,2
COMMENTS
Column 7 of A297986.
LINKS
EXAMPLE
Some solutions for n=7
..0..1..0..1..1..0..0. .0..0..0..0..0..1..1. .0..0..1..1..1..1..1
..0..0..0..1..0..1..0. .0..1..1..1..1..0..1. .0..1..0..0..0..0..1
..0..1..0..1..0..1..0. .1..0..0..0..1..0..0. .0..1..1..1..1..1..0
..1..1..0..1..0..1..0. .0..1..1..0..1..0..1. .1..0..0..0..0..0..1
..1..0..0..1..0..1..0. .0..0..1..0..1..1..1. .0..1..1..1..1..1..0
..0..1..1..1..0..0..1. .1..0..1..0..1..0..1. .1..0..0..0..0..0..1
..0..0..0..0..1..1..1. .1..1..0..1..0..0..0. .1..1..1..1..1..1..1
CROSSREFS
Cf. A297986.
Sequence in context: A263517 A299827 A146551 * A298634 A033414 A218053
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 10 2018
STATUS
approved