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A289650
Number of n X 7 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 two less than the number of 0's adjacent to some 1.
1
3, 2421, 183390, 25760875, 2439241607, 332113863074, 35072966294346, 4615203834449304, 519140871714574338, 66784349259505575111, 7809000921229551589905, 991318340748862385457430
OFFSET
1,1
COMMENTS
Column 7 of A289651.
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0..0..0..1..0. .0..0..0..1..0..1..1. .0..1..0..0..0..0..1
..0..1..1..0..1..0..0. .1..0..1..1..0..0..0. .1..0..0..0..0..1..1
..0..1..1..1..1..0..1. .1..1..0..0..0..0..1. .0..0..0..0..0..1..1
CROSSREFS
Cf. A289651.
Sequence in context: A365706 A081176 A255869 * A352600 A171361 A203687
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 09 2017
STATUS
approved