A159370 Number of n X n arrays of squares of integers with every (n-3)X(n-3) subblock summing to 7

20, 64440, 20417688, 3553639544, 136157771160, 2292617515072, 23218711066200, 166097016796752, 921709788123744, 4211771972031320, 16503648565063896, 57078845541052008, 177996206009045096, 508664826181945152

Offset

5,1

Links

R. H. Hardin, Table of n, a(n) for n=5..22

Crossrefs

Sequence in context: A099187 A129041 A129040 * A129039 A129038 A165344

Adjacent sequences: A159367 A159368 A159369 * A159371 A159372 A159373

Keyword

nonn

Author

R. H. Hardin Apr 11 2009

Status

approved