49806

Appears in sequences

• a(n) = (2*n^3 + 5*n^2 - 5*n)/2.at n=35A162265
• Number of partitions of 3n into at most 5 parts.at n=34A256525
• Numbers k such that 3*R_k + 40 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=22A256606
• Square array A(n,k) read by descending antidiagonals where A(n,k) is the k-th solution x to A328248(x) = n-1.at n=51A328250
• Triangle read by rows: T(n,k) is the number of embeddings on the sphere of connected simple planar graphs with n nodes and k faces up to orientation preserving isomorphisms, n >= 1, k=1..max(1,2*n-4).at n=47A384964