Number of n X n arrays of squares of integers with every 3X3 subblock summing to 9.
A159209
Number of n X n arrays of squares of integers with every 3X3 subblock summing to 9.
Terms
- a(0) =766a(1) =5670a(2) =24734a(3) =79462a(4) =333362a(5) =1099974a(6) =3149650a(7) =11849382a(8) =37740530a(9) =110604070a(10) =412449602a(11) =1358595654a(12) =4244427586
External references
- oeis: A159209