A159216 Number of n X n arrays of squares of integers with every 3X3 subblock summing to 16

3987, 44515, 258851, 1068723, 5651975, 23091787, 83929023, 401708875, 1644515111, 6321665907

Offset

3,1

Links

Table of n, a(n) for n=3..12.

Crossrefs

Sequence in context: A203190 A229382 A159218 * A236492 A236487 A235434

Adjacent sequences: A159213 A159214 A159215 * A159217 A159218 A159219

Keyword

nonn

Author

R. H. Hardin Apr 06 2009

Status

approved