49485

Appears in sequences

• Sum of a(n) terms of 1/k^(4/5) first exceeds n.at n=39A056180
• Integers of the form Sum_{i=1..m} phi(i)/gcd(m,i).at n=16A066970
• Let P1 >= 3, P2, P3 be consecutive primes, with P3 - P2 = 2. a(n) = (P2 + P3)/12 for the first occurrence of (P2 - P1)/2 = n.at n=32A329251
• 6*a(n) - 1 is the least prime p of a pair of twin primes p, p + 2, for which the prime gap immediately below p achieves the size 2*A007494(n).at n=21A337435