Number of lower triangular n X n arrays colored with integers 0 upwards introduced in row major order, with no element equal to any diagonal or antidiagonal neighbor.
A182367
Number of lower triangular n X n arrays colored with integers 0 upwards introduced in row major order, with no element equal to any diagonal or antidiagonal neighbor.
Terms
- a(0) =1a(1) =3a(2) =67a(3) =21350a(4) =147512732
External references
- oeis: A182367