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A269096
Number of nX7 0..3 arrays with some element plus some horizontally or vertically adjacent neighbor totalling three exactly once.
1
5832, 7375872, 5795398368, 3892946216856, 2416707037884480, 1430390977786967280, 819944297332124826720, 459338963193935894366016, 252910225839761737259917296, 137383600294764153686560207128
OFFSET
1,1
COMMENTS
Column 7 of A269097.
FORMULA
Empirical recurrence of order 64 (see link above)
EXAMPLE
Some solutions for n=1
..0..3..2..2..0..0..1. .1..1..0..3..1..1..1. .0..1..3..1..0..3..3
CROSSREFS
Cf. A269097.
Sequence in context: A269151 A269213 A114771 * A269275 A013809 A013888
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 19 2016
STATUS
approved