A159366 Number of n X n arrays of squares of integers with every (n-3)X(n-3) subblock summing to 6.

140, 19812, 8913232, 595746272, 11875516632, 123817422948, 858307163636, 4483837193664, 19013961578880, 68665353146676, 218233883750808, 624981011616640, 1641272383766192, 4005712638809748, 9181514958444972

Offset

5,1

Links

R. H. Hardin, Table of n, a(n) for n=5..23

Crossrefs

Sequence in context: A075915 A159362 A188255 * A189505 A190078 A091755

Adjacent sequences: A159363 A159364 A159365 * A159367 A159368 A159369

Keyword

nonn

Author

R. H. Hardin, Apr 11 2009

Status

approved