397320
domain: N
Appears in sequences
- Least common multiple of all (k+1)'s, where the k's are the positive divisors of n.at n=41A057643
- Numbers m that raised to the powers from 1 to k (with k>=1) are multiple of the sum of their digits (m raised to k+1 must not be a multiple). Case k=16.at n=10A135201
- G.f.: 1 = Sum_{n>=0} a(n)*x^n* Sum_{k>=0} C(2n+k,k)^2*(-x)^k.at n=5A181167
- Numbers with prime factorization p*q*r*s*t*u^3 (where p, q, r, s, t, u are distinct primes).at n=22A190378
- Least common multiple of all n - d, where d < n and d is a divisor of n.at n=43A258324
- Numbers n such that the multiplicative group modulo n is the direct product of 7 cyclic groups.at n=24A272597
- a(n) = A375251(n) / A010790(n) = denominator(W1([n], x)) / (n!*(n - 1)!), where W1([n], x) is the first Sylvester wave for parts in [n].at n=42A375250