Number of (n+1) X (2+1) 0..1 arrays with every element equal to some horizontal, diagonal or antidiagonal neighbor, with top left element zero.
A232070
Number of (n+1) X (2+1) 0..1 arrays with every element equal to some horizontal, diagonal or antidiagonal neighbor, with top left element zero.
Terms
- a(0) =15a(1) =87a(2) =602a(3) =3985a(4) =26713a(5) =178484a(6) =1193537a(7) =7979619a(8) =53352090a(9) =356709629a(10) =2384952501a(11) =15945724308a(12) =106612681357a(13) =712809462455
External references
- oeis: A232070