Lexicographically earliest sequence of pairwise coprime numbers such that tau(a(n)) = n, where tau(k) = number of divisors of k.

A086556

Lexicographically earliest sequence of pairwise coprime numbers such that tau(a(n)) = n, where tau(k) = number of divisors of k.

Terms

    a(0) =1a(1) =2a(2) =9a(3) =35a(4) =14641a(5) =2873a(6) =47045881a(7) =20677a(8) =2301289a(9) =160683647a(11) =14226847a(14) =375917360641a(15) =107972737a(17) =26979607331

External references