Number of n X n arrays of squares of integers with every (n-3)X(n-3) subblock summing to 9.
A159378
Number of n X n arrays of squares of integers with every (n-3)X(n-3) subblock summing to 9.
Terms
- a(0) =160a(1) =79462a(2) =106933952a(3) =53019140920
External references
- oeis: A159378