Number of (3+1)X(n+1) 0..3 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..3 introduced in row major order.
A239156
Number of (3+1)X(n+1) 0..3 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..3 introduced in row major order.
Terms
- a(0) =7a(1) =55a(2) =868a(3) =12159a(4) =175471a(5) =2519488a(6) =36221263a(7) =520615791a(8) =7483320292a(9) =107564015719
External references
- oeis: A239156