a(n) is the largest integer x such that x/sopf(x) = prime(n) where sopf(x) is the sum of distinct prime factors of x and prime(n) is the n-th prime.

A336493

a(n) is the largest integer x such that x/sopf(x) = prime(n) where sopf(x) is the sum of distinct prime factors of x and prime(n) is the n-th prime.

Terms

    a(0) =4a(1) =30a(2) =70a(3) =105a(4) =286a(5) =260a(6) =646a(7) =627a(8) =897a(9) =1798a(10) =1581a(11) =1924a(12) =3526a(13) =2967a(14) =3055a(15) =3339a(16) =7198a(17) =3721a(18) =6164a(19) =10366a(20) =5840a(21) =9717a(22) =10707a(23) =9256a(24) =9409a(25) =20806a(26) =16377a(27) =23326a(28) =16132a(29) =12769

External references