A156453 Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 11.

4, 42, 704, 37760, 5291400, 1392368488, 570443632816, 356237015034240, 353949803694601635

Offset

3,1

Links

Table of n, a(n) for n=3..11.

Crossrefs

Sequence in context: A355410 A136045 A192949 * A327200 A259062 A074768

Adjacent sequences: A156450 A156451 A156452 * A156454 A156455 A156456

Keyword

nonn

Author

R. H. Hardin, Feb 09 2009

Status

approved