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A252324 Number of (n+2)X(3+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 3 or 6 1
723110, 7391236, 96651850, 1374911658, 21966758822, 361804339326, 6064580742366, 102744429638974, 1748016658731578, 29797124749124402, 508629856632992338, 8686308686896513894, 148378705721929274262 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A252325

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..28

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Sequence in context: A153581 A100383 A250153 * A204150 A321495 A234495

Adjacent sequences:  A252321 A252322 A252323 * A252325 A252326 A252327

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 16 2014

STATUS

approved

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Last modified January 27 22:48 EST 2022. Contains 350654 sequences. (Running on oeis4.)