39152

Appears in sequences

• Royal paths in a lattice.at n=6A006321
• Triangular array read by rows associated with Schroeder numbers: T(1,k) = 1; T(n,k) = 0 if k < n; T(n,k) = T(n,k-1) + T(n-1,k-1) + T(n-1,k).at n=51A033877
• Numbers k such that 129*2^k-1 is prime.at n=43A050590
• Triangular array associated with Schroeder numbers: T(0,0) = 1, T(n,0) = 0 for n > 0; T(n,k) = 0 if k < n; T(n,k) = T(n,k-1) + T(n-1,k-1) + T(n-1,k).at n=62A106579
• Riordan array (1, x*f(x)) where f(x)is the g.f. of A006318.at n=59A122538