53841725

Appears in sequences

• Number of ways to reciprocally link elements of an n X 4 array either to themselves or to exactly one king-move neighbor.at n=6A220640
• Number of ways to reciprocally link elements of an n X 6 array either to themselves or to exactly one king-move neighbor.at n=4A220642
• T(n,k) = number of ways to reciprocally link elements of an n X k array either to themselves or to exactly one king-move neighbor.at n=39A220644
• T(n,k) = number of ways to reciprocally link elements of an n X k array either to themselves or to exactly one king-move neighbor.at n=41A220644