A146210 Number of n X n arrays of squares of integers summing to 8 with every element equal to at least one neighbor.

4, 12, 1938, 58808, 475414, 2193309, 7466929, 20973758, 51518964, 114522547, 235503899, 454805724, 833826118, 1463054489, 2472233877, 4042999114, 6424367144

Offset

2,1

Links

Table of n, a(n) for n=2..18.

Crossrefs

Sequence in context: A144631 A009516 A266500 * A024248 A130539 A156823

Adjacent sequences: A146207 A146208 A146209 * A146211 A146212 A146213

Keyword

nonn

Author

R. H. Hardin Apr 14 2009

Status

approved