34804

Appears in sequences

• a(n) is the smallest number k larger than a(n-1) such that n*d(k)*sopf(k)=sigma(k), where d is the number of divisors (A000005) and sopf the sum of prime factors without repetition (A008472).at n=23A134382
• Number of partitions of n containing a clique of size 5.at n=45A183562
• Number of partitions of n in which two summands (of each size) are designated.at n=27A255180
• Number of partitions of 8 copies of n into distinct parts.at n=11A258286
• Numbers k such that sigma(k) = sigma(k - d(k)).at n=34A277273
• The Lychrel number a(n) sets a new record for the 'Reverse and Add' steps in base 8 needed to reach a Lychrel number m < a(n) (i.e., its seed).at n=6A306850
• Numbers k for which rank of the elliptic curve y^2=x^3+k*x is 4.at n=35A309031
• Even numbers 2m such that A352612(2m) = A103131(2m).at n=39A352587