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A251997 Number of (n+2)X(5+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 2 4 5 or 7 1
2708560, 308552418, 39474106776, 5058864059512, 648649767997560, 83204478074887540, 10674144780289546954, 1369370682559455572124, 175674752635044616011278, 22537093202446356860490010 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A252000

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..172

EXAMPLE

Some solutions for n=1

..0..0..0..0..3..3..0....0..0..0..0..0..3..0....0..0..0..0..0..3..3

..0..0..0..3..3..3..0....3..0..3..0..3..0..0....3..3..0..0..3..0..3

..0..3..0..0..0..0..3....0..3..3..0..0..0..3....0..0..3..3..0..3..3

CROSSREFS

Sequence in context: A212231 A317286 A081409 * A104848 A234370 A051384

Adjacent sequences:  A251994 A251995 A251996 * A251998 A251999 A252000

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 12 2014

STATUS

approved

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Last modified May 26 04:43 EDT 2022. Contains 354074 sequences. (Running on oeis4.)