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

6881308, 782954632, 13277304274, 98312125934, 1633057450764, 41357385753908, 692955339504464, 11055555514035680, 205164115130904298, 3720828179140603290, 64524367873316788320, 1142575985619965697994

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