Number of 4Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1s.
A297684
Number of 4Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1s.
Terms
- a(0) =16a(1) =98a(2) =742a(3) =4633a(4) =32911a(5) =221420a(6) =1519630a(7) =10322924a(8) =70546581a(9) =480682141a(10) =3279483836a(11) =22360879158a(12) =152513668108
External references
- oeis: A297684