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A304346
Number of n X 7 0..1 arrays with every element unequal to 0, 1, 2, 4 or 5 king-move adjacent elements, with upper left element zero.
1
64, 752, 1752, 18855, 127511, 741942, 4921043, 36193582, 250785575, 1779945291, 12929993002, 94656684886, 695667963845, 5171776044984, 38719889240747, 291633802759322, 2210618685640386, 16857082428252540, 129166332857398739
OFFSET
1,1
COMMENTS
Column 7 of A304347.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..0..1..0..0. .0..1..0..1..1..0..0. .0..1..0..0..1..1..0
..1..0..0..0..0..0..0. .0..0..0..0..0..0..0. .0..0..0..0..0..0..0
..0..0..0..0..0..0..0. .0..0..0..0..0..0..0. .1..0..0..0..0..0..0
..0..0..0..0..0..0..1. .1..1..0..0..1..1..0. .0..0..0..0..0..0..0
..1..1..0..1..0..0..1. .1..1..1..1..1..0..1. .0..1..0..0..0..0..0
CROSSREFS
Cf. A304347.
Sequence in context: A195593 A221753 A055867 * A316217 A305641 A317035
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 11 2018
STATUS
approved