291661

Properties

Appears in sequences

• Divide the terms of the harmonic series into groups sequentially so that the sum of each group is minimally greater than 1. a(n) is the number of terms in the n-th group.at n=12A331030
• Primes of the form (p*q*r - p - q - r)/2, where p, q, r are consecutive primes.at n=5A390797
• Prime numbersat n=25360