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A183600 1/6 the number of (n+1)X7 0..2 arrays with every 2X2 subblock containing all three values 1
10572, 574185, 27768032, 1376627608, 68026656422, 3366668183708, 166653005250320, 8251614370134644, 408619818725184342, 20236484168674868650, 1002238533164802053394, 49638595435230968839084 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A183603
LINKS
EXAMPLE
Some solutions with a(1,1)=0 for 3X7
..0..0..2..0..1..1..2....0..0..0..1..2..2..0....0..0..0..0..1..0..1
..1..2..1..0..2..0..1....1..2..1..2..0..1..0....1..2..1..2..2..0..2
..2..0..2..0..1..0..2....2..0..0..1..2..0..2....0..0..0..1..0..1..0
CROSSREFS
Sequence in context: A187727 A025028 A063063 * A302772 A063433 A089494
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 05 2011
STATUS
approved

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Last modified March 29 06:15 EDT 2024. Contains 371265 sequences. (Running on oeis4.)