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A251638 Number of (n+2)X(1+2) 0..2 arrays with some row, column, diagonal or antidiagonal in every 3X3 subblock summing to 3 1
17511, 429399, 10560127, 259228149, 6364650023, 156279294337, 3837213542225, 94217351705611, 2313377685724183, 56801788011413551, 1394689284588080653, 34244666060924691341, 840830398251185804161, 20645427139891516724819 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 1 of A251641

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=1

..2..0..2....0..0..0....1..1..2....2..1..2....2..1..1....2..1..0....1..2..1

..2..0..1....2..1..1....0..1..1....2..0..1....2..1..1....0..0..0....1..0..0

..1..0..1....1..2..1....1..0..2....0..1..2....0..1..0....1..1..1....2..0..2

CROSSREFS

Sequence in context: A048256 A303996 A251641 * A234562 A321640 A083599

Adjacent sequences:  A251635 A251636 A251637 * A251639 A251640 A251641

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 06 2014

STATUS

approved

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Last modified August 19 23:59 EDT 2022. Contains 356231 sequences. (Running on oeis4.)