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A252621 Number of (6+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 3 5 6 or 8 and every 3X3 column and antidiagonal sum not equal to 0 3 5 6 or 8 1
5503, 37917, 153189, 617798, 4274586, 18149682, 82404422, 571397644, 2451795723, 11526421874, 81714444770, 352505179731, 1676004467136, 12066830677075, 52201486791538, 249256160558604, 1809616167926962, 7839226018586938 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A252615

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A031617 A045132 A096702 * A234561 A252511 A250876

Adjacent sequences:  A252618 A252619 A252620 * A252622 A252623 A252624

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 19 2014

STATUS

approved

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Last modified May 17 03:25 EDT 2022. Contains 353727 sequences. (Running on oeis4.)