Number of horizontal and antidiagonal neighbor colorings of the odd squares of an n X n array with new integer colors introduced in row major order.

A216077

Number of horizontal and antidiagonal neighbor colorings of the odd squares of an n X n array with new integer colors introduced in row major order.

Terms

    a(0) =1a(1) =1a(2) =5a(3) =602a(4) =373780a(5) =33093252880

External references