A156500 Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 37.

2, 6, 110, 4146, 819560, 482038068, 1640436725312, 24866331300024792

Offset

2,1

Links

Table of n, a(n) for n=2..9.

Crossrefs

Sequence in context: A216151 A057771 A056164 * A264889 A365669 A374816

Adjacent sequences: A156497 A156498 A156499 * A156501 A156502 A156503

Keyword

nonn

Author

R. H. Hardin, Feb 09 2009

Status

approved