Start with n; if prime, skip; repeatedly sum prime factors (counted with multiplicity) and add 1, until reach 1, 6 or a prime.

A029911

Start with n; if prime, skip; repeatedly sum prime factors (counted with multiplicity) and add 1, until reach 1, 6 or a prime.

Terms

    a(0) =1a(1) =5a(2) =6a(3) =7a(4) =7a(5) =7a(6) =7a(7) =7a(8) =7a(9) =7a(10) =7a(11) =7a(12) =11a(13) =7a(14) =7a(15) =11a(16) =7a(17) =7a(18) =7a(19) =11a(20) =11a(21) =7a(22) =7a(23) =13a(24) =11a(25) =7a(26) =17a(27) =7a(28) =13a(29) =7

External references