Number of nX4 0..1 arrays with each 1 adjacent to 2 or 4 king-move neighboring 1s.
A296035
Number of nX4 0..1 arrays with each 1 adjacent to 2 or 4 king-move neighboring 1s.
Terms
- a(0) =1a(1) =21a(2) =70a(3) =204a(4) =997a(5) =4102a(6) =15399a(7) =63267a(8) =258493a(9) =1030120a(10) =4156150a(11) =16818617a(12) =67740232a(13) =273149847a(14) =1102534609a(15) =4447180671a(16) =17938365350a(17) =72372158734a(18) =291962906495
External references
- oeis: A296035