150240

Appears in sequences

• Theta series of direct sum of 5 copies of D_4 lattice.at n=3A008661
• a(n) = usigma(A276086(n)), where usigma (A034448) is multiplicative with a(p^e) = (p^e)+1, and A276086 gives the prime product form of primorial base expansion of n.at n=59A348996
• Number of subsets of {1..n} such that it is possible to choose a different prime factor of each element.at n=27A370582