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A252454 Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 4 6 or 7 1
1731, 7223, 38966, 203320, 1058050, 5596619, 29527662, 155721485, 823647387, 4355427974, 23011713271, 121620027508, 643010695889, 3399424543954, 17969865361314, 94992368742548, 502171830132233, 2654727031396843 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A252457

LINKS

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

EXAMPLE

Some solutions for n=3

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

..3..3..3..3..3..3..3....1..3..1..1..1..1..1....3..1..1..3..1..1..1

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

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

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

CROSSREFS

Sequence in context: A130876 A234706 A211853 * A256807 A008745 A230967

Adjacent sequences:  A252451 A252452 A252453 * A252455 A252456 A252457

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 17 2014

STATUS

approved

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Last modified September 25 06:22 EDT 2022. Contains 356959 sequences. (Running on oeis4.)