114900

Appears in sequences

• Number of ways to reciprocally link elements of an n X 7 array either to themselves or to exactly two horizontal, diagonal or antidiagonal neighbors.at n=2A220724
• 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=38A220725
• Number of ways to reciprocally link elements of an 3Xn array either to themselves or to exactly two horizontal, diagonal or antidiagonal neighbors.at n=6A220727
• Expansion of Product_{k>=1} (1 + 4*x^k).at n=27A261568
• Numbers k such that 3 is the largest decimal digit of k^2.at n=33A277960