A159364 Number of n X n arrays of squares of integers with every (n-1) X (n-1) subblock summing to 6.

32, 2060, 141880, 4854272, 73856992, 668598540, 4259570196, 21065037760, 86017825224, 302312608028, 941578159280, 2655072415456, 6888478511720, 16650113930716, 37865062169148, 81663610397952, 168110566286800

Offset

3,1

Links

R. H. Hardin, Table of n, a(n) for n=3..27

Crossrefs

Sequence in context: A317515 A300180 A277426 * A202734 A268054 A268077

Adjacent sequences: A159361 A159362 A159363 * A159365 A159366 A159367

Keyword

nonn

Author

R. H. Hardin, Apr 11 2009

Status

approved