A156466 Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 17.

2, 10, 84, 1308, 50500, 5934606, 3733057244, 7484174351906, 30512551214306088

Offset

2,1

Links

Table of n, a(n) for n=2..10.

Crossrefs

Sequence in context: A322406 A302935 A332655 * A304403 A132397 A202745

Adjacent sequences: A156463 A156464 A156465 * A156467 A156468 A156469

Keyword

nonn

Author

R. H. Hardin Feb 09 2009

Status

approved