Number of n X n arrays of squares of integers summing to 4 with every element equal to at least one neighbor.

A146089

Number of n X n arrays of squares of integers summing to 4 with every element equal to at least one neighbor.

Terms

    a(0) =1a(1) =32a(2) =219a(3) =698a(4) =1657a(5) =3336a(6) =6023a(7) =10054a(8) =15813a(9) =23732a(10) =34291a(11) =48018a(12) =65489a(13) =87328a(14) =114207a(15) =146846a(16) =186013a(17) =232524

External references