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A302414
Number of nX7 0..1 arrays with every element equal to 0, 1, 2 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
64, 361, 599, 3655, 33596, 306064, 2342685, 20184979, 170625048, 1425095842, 12008438672, 101010115716, 849123265189, 7142364165791, 60060064234249, 505098146911393, 4247807853135286, 35722407791248043, 300417586740296887
OFFSET
1,1
COMMENTS
Column 7 of A302415.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..0..0..1..0. .0..0..1..0..1..1..0. .0..1..0..1..1..0..1
..0..0..0..1..1..1..0. .1..1..1..0..0..0..1. .1..0..0..1..0..0..1
..0..1..0..1..0..1..0. .1..0..1..0..1..0..1. .0..1..0..1..0..1..1
..1..1..0..1..1..1..0. .1..0..0..1..1..1..1. .0..1..0..1..0..1..0
..0..0..1..0..0..1..1. .0..0..1..0..1..0..0. .0..1..0..1..0..1..0
CROSSREFS
Cf. A302415.
Sequence in context: A137739 A281468 A302622 * A303181 A017486 A344302
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 07 2018
STATUS
approved