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A269185
Number of nX7 0..3 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling three exactly once.
1
5832, 739008, 154606864, 29881402560, 5665397992608, 1052109184130840, 192247800095048896, 34666986301328823344, 6183899646434421899984, 1093211509437280016564192, 191809173606551182685393776
OFFSET
1,1
COMMENTS
Column 7 of A269186.
LINKS
EXAMPLE
Some solutions for n=1
..3..0..0..1..0..2..0. .3..2..2..1..3..1..1. .0..2..1..1..0..1..1
CROSSREFS
Cf. A269186.
Sequence in context: A264887 A035903 A251189 * A147859 A269151 A269213
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 20 2016
STATUS
approved