42987

Appears in sequences

• a(n) = (2*n - 1) * (2^n - 1).at n=10A118414
• Integers n such that 2n^2+1, 2n^3+1 and 2n^4+1 are prime.at n=36A239920
• Number of n-node unlabeled rooted trees with thinning limbs and root outdegree (branching factor) 6.at n=14A244707
• Total number of partitions of k*n into 3 parts for k = 1..n.at n=16A343124