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A252625 Number of (n+2)X(3+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 1 3 6 or 8 1
81098, 585774, 8098018, 118551272, 1793890764, 27201457322, 412945739530, 6275667755428, 95419825718602, 1450304432983900, 22045371288141516, 335110120307976884, 5094055063152273398, 77434509354310263684 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A252628

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..199

EXAMPLE

Some solutions for n=1

..2..0..2..0..0....3..3..3..1..1....2..2..0..0..2....2..2..1..1..2

..1..1..3..0..2....3..1..1..3..3....3..2..0..2..2....2..0..2..3..0

..2..1..2..2..0....1..3..3..1..3....2..0..0..0..0....3..2..2..0..0

CROSSREFS

Sequence in context: A157664 A218106 A064001 * A233994 A237942 A274033

Adjacent sequences:  A252622 A252623 A252624 * A252626 A252627 A252628

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 19 2014

STATUS

approved

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Last modified January 24 16:44 EST 2021. Contains 340411 sequences. (Running on oeis4.)