A146092 Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 4 and every element equal to at least one neighbor.
1, 235, 1894, 5928, 14762, 31448, 59802, 104420, 170678, 264732, 393518, 564752, 786930, 1069328, 1422002, 1855788, 2382302, 3013940, 3763878, 4646072, 5675258, 6866952, 8237450, 9803828, 11583942, 13596428, 15860702
Offset: 4