9943416

Appears in sequences

• Number of ways to reciprocally link elements of an nX4 array either to themselves or to exactly one horizontal, vertical or antidiagonal neighbor.at n=5A220549
• Number of ways to reciprocally link elements of an nX6 array either to themselves or to exactly one horizontal, vertical or antidiagonal neighbor.at n=3A220551
• T(n,k)=Number of ways to reciprocally link elements of an nXk array either to themselves or to exactly one horizontal, vertical or antidiagonal neighbor.at n=39A220553
• T(n,k)=Number of ways to reciprocally link elements of an nXk array either to themselves or to exactly one horizontal, vertical or antidiagonal neighbor.at n=41A220553