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A183668 Number of (n+1)X6 0..6 arrays with every 2x2 subblock summing to 12 0
251991, 678265, 2163831, 7794409, 30722151, 129866905, 580718871, 2719942729, 13245504711, 66684138745, 345524027511 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A183672

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for 3X6

..0..6..4..4..0..0....0..6..0..3..3..5....4..0..4..0..3..2....4..4..0..3..1..6

..6..0..2..2..6..6....5..1..5..4..2..2....4..4..4..4..5..2....0..4..4..5..3..2

..0..6..4..4..0..0....0..6..0..3..3..5....2..2..2..2..1..4....4..4..0..3..1..6

CROSSREFS

Sequence in context: A271144 A058004 A272438 * A235025 A237106 A113567

Adjacent sequences:  A183665 A183666 A183667 * A183669 A183670 A183671

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 06 2011

STATUS

approved

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Last modified October 20 17:42 EDT 2019. Contains 328268 sequences. (Running on oeis4.)