91678

Appears in sequences

• Number of ways of embedding a connected graph with n edges in the square lattice.at n=9A019988
• A(n, k) is the k-th number b > 1 such that b^(prime(n+i)-1) == 1 (mod prime(n+i)^2) for each i = 0..3, with k running over the positive integers; square array, read by antidiagonals, downwards.at n=24A319061