A156497 Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 36.

1, 2, 8, 127, 7011, 1441324, 1060428518, 4031182499262, 44780594451612813

Offset

1,2

Links

Table of n, a(n) for n=1..9.

Crossrefs

Sequence in context: A009360 A202648 A193481 * A064205 A081856 A038533

Adjacent sequences: A156494 A156495 A156496 * A156498 A156499 A156500

Keyword

nonn

Author

R. H. Hardin Feb 09 2009

Status

approved