6349886

Appears in sequences

• Number of ways to reciprocally link elements of an nX4 array either to themselves or to exactly two horizontal, vertical or antidiagonal neighbors.at n=5A220684
• Number of ways to reciprocally link elements of an nX6 array either to themselves or to exactly two horizontal, vertical or antidiagonal neighbors.at n=3A220686
• T(n,k)=Number of ways to reciprocally link elements of an nXk array either to themselves or to exactly two horizontal, vertical or antidiagonal neighbors.at n=39A220688
• T(n,k)=Number of ways to reciprocally link elements of an nXk array either to themselves or to exactly two horizontal, vertical or antidiagonal neighbors.at n=41A220688