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A251920 Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row and column sum 2 4 5 or 7 and every diagonal and antidiagonal sum not 2 4 5 or 7 1
5810, 10704, 27366, 80438, 340800, 1316762, 5742474, 24518672, 111841952, 475675160, 2195264850, 9409677550, 43424782424, 186174329366, 859992120484, 3688928833596, 17042959558538, 73099593519660, 337732501210922 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A251923

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

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

CROSSREFS

Sequence in context: A031618 A206655 A270866 * A348821 A104284 A237477

Adjacent sequences:  A251917 A251918 A251919 * A251921 A251922 A251923

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 11 2014

STATUS

approved

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Last modified September 24 22:49 EDT 2022. Contains 356949 sequences. (Running on oeis4.)