Smallest k such that the partial sums of the divisors of k (taken in increasing order) contain exactly n primes.

A187822

Smallest k such that the partial sums of the divisors of k (taken in increasing order) contain exactly n primes.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =16a(4) =64a(5) =140a(6) =440a(7) =700a(8) =1650a(9) =2304a(10) =5180a(11) =3960a(12) =3900a(13) =14400a(14) =15600a(15) =43560a(16) =39600a(17) =57600a(18) =56700a(19) =81900a(20) =25200a(21) =112896a(22) =100100a(23) =177840a(24) =198000a(25) =411840a(26) =222768a(27) =226800a(28) =637560a(29) =752400

External references