A251777 Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row and column sum 3 or 6 and every diagonal and antidiagonal sum not 3 or 6.

27242, 430730, 2861058, 16580426, 247384810, 1752287522, 10300749962, 154175434186, 1105860243970, 6575712526154, 98212453983210, 709383209384994, 4239352141271690, 63255463614004042, 458400029991568130

Offset

1,1

Comments

Column 6 of A251779

Links

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

R. H. Hardin, Empirical recurrence of order 85

Formula

Empirical recurrence of order 85 (see link above)

Example

Some solutions for n=1
..2..0..1..2..0..1..2..3....3..0..0..3..0..3..0..0....0..3..3..0..0..3..0..3
..0..3..3..0..3..3..0..3....2..0..1..2..3..1..2..3....1..0..2..1..3..2..1..0
..1..3..2..1..0..2..1..0....1..3..2..1..0..2..1..3....2..3..1..2..0..1..2..3

Crossrefs

Sequence in context: A250852 A157820 A392385 * A032746 A099230 A267706

Adjacent sequences: A251774 A251775 A251776 * A251778 A251779 A251780

Keyword

nonn

Author

R. H. Hardin, Dec 08 2014

Status

approved