Number of distinct n X 2 toroidal 0..4 arrays.
A184285
Number of distinct n X 2 toroidal 0..4 arrays.
Terms
- a(0) =15a(1) =175a(2) =2635a(3) =49075a(4) =976887a(5) =20349075a(6) =435970995a(7) =9536816575a(8) =211927736135
External references
- oeis: A184285