Number of ways to reciprocally link elements of an nX5 array either to themselves or to exactly two king-move neighbors.
A220593
Number of ways to reciprocally link elements of an nX5 array either to themselves or to exactly two king-move neighbors.
Terms
- a(0) =1a(1) =710a(2) =87542a(3) =14637699a(4) =2255735554a(5) =353961472626
External references
- oeis: A220593