login
A146199
Number of n X n arrays of squares of integers with every (n-2) X (n-2) subblock summing to 6 and every element equal to at least one neighbor.
1
0, 98, 34778, 290306, 1182610, 3573766, 9017466, 20075266, 40694834, 76649830, 136042186, 229866786, 372638546, 583081894, 884882650, 1307502306, 1887054706, 2667245126
OFFSET
4,2
CROSSREFS
Sequence in context: A181553 A251914 A277658 * A159381 A295191 A295184
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 14 2009
STATUS
approved