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A304956
Number of n X 5 0..1 arrays with every element unequal to 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.
1
3, 120, 371, 2080, 11282, 60568, 334906, 1852576, 10208628, 56476986, 312311660, 1726835768, 9548532077, 52807525484, 292024665946, 1614879713366, 8930532980138, 49386528451002, 273109909878597, 1510322716604761
OFFSET
1,1
COMMENTS
Column 5 of A304959.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..0..1. .0..1..1..1..0. .0..1..0..0..1. .0..0..1..1..0
..0..1..1..0..0. .0..1..0..1..1. .1..1..0..0..0. .1..0..1..1..1
..1..1..1..1..0. .0..0..1..1..0. .1..0..0..1..1. .0..0..0..0..1
..0..1..0..0..1. .0..0..0..0..0. .1..0..1..0..1. .0..0..0..1..0
..0..0..0..1..1. .0..1..0..0..1. .0..1..1..0..0. .0..1..0..0..0
CROSSREFS
Cf. A304959.
Sequence in context: A375935 A304016 A305364 * A316638 A227480 A304694
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 22 2018
STATUS
approved