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A251982 Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row and column sum not 0 1 2 7 8 or 9 and every diagonal and antidiagonal sum 0 1 2 7 8 or 9 1
6881308, 782954632, 13277304274, 98312125934, 1633057450764, 41357385753908, 692955339504464, 11055555514035680, 205164115130904298, 3720828179140603290, 64524367873316788320, 1142575985619965697994 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A251983

LINKS

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

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Sequence in context: A185427 A185426 A250457 * A323497 A323806 A186793

Adjacent sequences:  A251979 A251980 A251981 * A251983 A251984 A251985

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 12 2014

STATUS

approved

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Last modified December 10 15:09 EST 2019. Contains 329896 sequences. (Running on oeis4.)