a(n) is the smallest number m greater than 1 such that phi(m) = d(m)^n, where d(m) is number of positive divisors of m; if there is no such m, a(n)=1.

A107655

a(n) is the smallest number m greater than 1 such that phi(m) = d(m)^n, where d(m) is number of positive divisors of m; if there is no such m, a(n)=1.

Terms

    a(0) =3a(1) =5a(2) =85a(3) =17a(4) =1285a(5) =4369a(6) =559876a(7) =257a(8) =327685a(9) =1114129a(11) =16843009a(15) =65537

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