Number of ways to reciprocally link elements of an nX5 array either to themselves or to exactly two king-move neighbors, without 3-loops.
A220650
Number of ways to reciprocally link elements of an nX5 array either to themselves or to exactly two king-move neighbors, without 3-loops.
Terms
- a(0) =1a(1) =344a(2) =59846a(3) =8627817a(4) =1233993907a(5) =179768901595
External references
- oeis: A220650