A159218 Number of n X n arrays of squares of integers with every 3X3 subblock summing to 17

3987, 41067, 223475, 867339, 4371779, 16945443, 57746907, 263236635, 1012743923, 3636595539

Offset

3,1

Links

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

Crossrefs

Sequence in context: A186799 A203190 A229382 * A159216 A236492 A236487

Adjacent sequences: A159215 A159216 A159217 * A159219 A159220 A159221

Keyword

nonn

Author

R. H. Hardin Apr 06 2009

Status

approved