A146299 Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 8 and every element equal to at least one neighbor.
8, 18, 107798, 6685156, 62777794, 313834602, 1129602808, 3313914698, 8438118356, 19340801916
Offset: 4