308756448000
domain: N
Appears in sequences
- Denominator of b(n), where b(n+1) = Sum_{k=0..n} b'((n^2-k^2)/n), b(0) = b(1) = 1, and b'(x) = b(x) if x is an integer and is linearly interpolated otherwise.at n=18A071301
- a(1) = 1, a(n) = a(n-1) times largest nontrivial divisor if n is composite.at n=16A072487
- a(1) = 1, a(k) divides a(k+r) for all k and r and the ratios a(k+r)/a(k) are all different.at n=14A079854
- Denominators in expansion of 1/(1-log(1+x)).at n=17A226933
- Denominator of the sum of inverse products of cycle sizes in all permutations of [n].at n=17A323291
- Denominator of the sum of inverse products of parts in all compositions of n.at n=17A323340
- a(n) = (1/n) * Product_{k=1..n} radical(k) for n >= 1, a(0) = 1, where radical(n) is the product of distinct prime factors of n, cf. A007947.at n=18A387140