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A278284
Number of 5 X n 0..1 arrays with every element both equal and not equal to some elements at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.
1
0, 49, 839, 16842, 350649, 7466627, 157609938, 3332353281, 70423579121, 1488690711220, 31465894708605, 665110590387221, 14058553586577416, 297159984661665232, 6281145221048978301, 132766286493553767967
OFFSET
1,2
COMMENTS
Row 5 of A278280.
LINKS
EXAMPLE
Some solutions for n=4
..0..1..0..0. .0..1..0..1. .0..0..1..1. .0..1..0..1. .0..1..1..0
..0..1..0..1. .0..1..0..1. .1..1..1..0. .0..1..0..1. .0..1..0..0
..0..0..0..1. .0..0..0..1. .1..0..0..0. .0..1..0..1. .1..0..0..1
..1..0..0..1. .0..1..1..0. .1..0..1..0. .1..0..0..1. .1..0..0..1
..1..1..0..0. .1..1..1..1. .1..1..1..0. .1..1..0..0. .0..0..0..0
CROSSREFS
Cf. A278280.
Sequence in context: A350982 A289992 A357653 * A110906 A193940 A012115
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 16 2016
STATUS
approved