Number of n X n arrays of squares of integers summing to 15 with every element equal to at least one neighbor.

A146500

Number of n X n arrays of squares of integers summing to 15 with every element equal to at least one neighbor.

Terms

    a(0) =0a(1) =72a(2) =9780a(3) =668362a(4) =173484536a(5) =10081326340a(6) =182802386772

External references