49515

Appears in sequences

• Numbers n such that 123*2^n-1 is prime.at n=33A050587
• Indices of primes in sequence defined by A(0) = 97, A(n) = 10*A(n-1) + 17 for n > 0.at n=18A101018
• Number of compositions of n avoiding equidistant 3-term arithmetic progressions.at n=20A238432
• E.g.f.: Sum_{n>=0} x^n * (3*exp(n*x) - 2)^n.at n=5A248471
• Number of totally aperiodic integer partitions of n.at n=41A319811
• Table read by antidiagonals: Place k equally spaced points on each side of a regular n-gon and join every pair of these n*k points by a chord; T(n,k) (n >= 3, k >= 0) gives the number of edges in the resulting planar graph.at n=38A367305