49240

Appears in sequences

• Ruth-Aaron numbers (2): sum of prime divisors of n = sum of prime divisors of n+1 (both taken with multiplicity).at n=41A039752
• Numbers k such that sopfr(k) = sopf(k+1), where sopf(k) = A008472(k) and sopfr(k) = A001414(k).at n=29A064675
• Number of partitions of n times number of divisors of n.at n=33A141667
• Number of partitions of n into parts of exactly 3 sorts which are introduced in ascending order.at n=8A258458
• a(n) = 4*p(n), where p(n) is the number of partitions of n.at n=34A299474
• Number of (undirected) Hamiltonian paths in the n-dipyramidal graph.at n=17A307939
• Infinitary Ruth-Aaron numbers: numbers k such that A181894(k) = A181894(k+1).at n=28A330999
• One-quarter of the number of regions in the central square of an equal-armed cross with arms of length n (as in A331456).at n=14A337641