Number of n X n arrays of squares of integers with every 3X3 subblock summing to 7.
A159207
Number of n X n arrays of squares of integers with every 3X3 subblock summing to 7.
Terms
- a(0) =540a(1) =4128a(2) =19028a(3) =64440a(4) =278516a(5) =945816a(6) =2788452a(7) =10699008a(8) =34672388a(9) =103376592a(10) =390361412a(11) =1299118848a(12) =4097433060
External references
- oeis: A159207