Number of (n+1)X(3+1) 0..1 arrays with every element equal to some horizontal or antidiagonal neighbor, with top left element zero.
A232311
Number of (n+1)X(3+1) 0..1 arrays with every element equal to some horizontal or antidiagonal neighbor, with top left element zero.
Terms
- a(0) =16a(1) =139a(2) =1202a(3) =10409a(4) =90157a(5) =780922a(6) =6764246a(7) =58591124a(8) =507509767a(9) =4395993154a(10) =38077604237a(11) =329823977717
External references
- oeis: A232311