Number of ways to reciprocally link elements of an n X n array either to themselves or to exactly one king-move neighbor.
A220638
Number of ways to reciprocally link elements of an n X n array either to themselves or to exactly one king-move neighbor.
Terms
- a(0) =1a(1) =1a(2) =10a(3) =369a(4) =92801a(5) =128171936
External references
- oeis: A220638