331589

Properties

Appears in sequences

• Number of ways to reciprocally link elements of an nX4 array either to themselves or to exactly two horizontal, diagonal or antidiagonal neighbors.at n=5A220721
• T(n,k)=Number of ways to reciprocally link elements of an nXk array either to themselves or to exactly two horizontal, diagonal or antidiagonal neighbors.at n=41A220725
• Number of ways to reciprocally link elements of an 6Xn array either to themselves or to exactly two horizontal, diagonal or antidiagonal neighbors.at n=3A220730
• Prime numbersat n=28534