login
A156452
Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 10.
0
2, 0, 32, 32, 1718, 5108, 239978, 1380432, 102471151, 1435365144, 219088073110, 5750051401712, 1397876167796318, 53808016711020432
OFFSET
2,1
CROSSREFS
Sequence in context: A071147 A156481 A176726 * A156473 A156504 A340545
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 09 2009
STATUS
approved