A159388 Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 12

24, 98081, 86534020, 59774613259, 19489601823140, 2861260951432262, 187012059845091304, 6523958093214152874

Offset

4,1

Links

Table of n, a(n) for n=4..11.

Crossrefs

Sequence in context: A003920 A367568 A052504 * A172628 A294318 A061527

Adjacent sequences: A159385 A159386 A159387 * A159389 A159390 A159391

Keyword

nonn

Author

R. H. Hardin Apr 11 2009

Status

approved