Number of (4+1)X(n+1) 0..1 arrays with every element equal to some horizontal or antidiagonal neighbor, with top left element zero.
A232320
Number of (4+1)X(n+1) 0..1 arrays with every element equal to some horizontal or antidiagonal neighbor, with top left element zero.
Terms
- a(0) =34a(1) =551a(2) =10409a(3) =231454a(4) =5142441a(5) =113293694a(6) =2499669158a(7) =55147236337
External references
- oeis: A232320