346500
domain: N
Appears in sequences
- Triangle read by rows of products of Stirling numbers of the second kind (A008277): a(n,k) = S(n,k) S(n+1,k+1).at n=52A187557
- Numbers with prime factorization pqr^2s^2t^3.at n=18A190386
- a(n) = Product_{d|n} A019565(d)^(1-A008966(n/d)).at n=79A300830
- a(n) = Product_{d|n} A019565(d)^[moebius(n/d) = -1].at n=41A300832
- a(1) = 1; for n > 1, a(n) = Product_{d|n} A019565(d)^[moebius(d) = +1].at n=41A320017
- a(n) is the smallest n-gonal number with exactly n prime factors (counted with multiplicity).at n=7A358863