A159412 Number of n X n arrays of squares of integers with every (n-1) X (n-1) subblock summing to 23.

32, 138080, 345728160, 894351203904, 1748499502214400, 2301794162587632420, 1876573771106494189800, 894576877960295025634240, 244626955979352425876640600, 39350274991603091888986074300

Offset

3,1

Links

R. H. Hardin, Table of n, a(n) for n=3..15

Crossrefs

Sequence in context: A034245 A230566 A017093 * A201987 A217272 A017189

Adjacent sequences: A159409 A159410 A159411 * A159413 A159414 A159415

Keyword

nonn

Author

R. H. Hardin, Apr 11 2009

Status

approved