40112098026
domain: N
Appears in sequences
- Squarefree part of lcm(1,...,n).at n=32A056839
- Squarefree part of lcm(1,...,n).at n=33A056839
- Squarefree part of lcm(1,...,n).at n=34A056839
- Denominator of Sum_{i=1..n} 1/(prime(i)*prime(i+1)).at n=9A241190
- a(1) = 1; thereafter a(n) = a(n-1) / lpf(n) if lpf(n) divides a(n-1), otherwise a(n) = a(n-1) * lpf(n), where lpf is the least prime factor function A020639.at n=31A337643