k is a term if and only if k is a composite number where the bases and the exponents of its factors in the prime decomposition are all odd primes.
A369118
k is a term if and only if k is a composite number where the bases and the exponents of its factors in the prime decomposition are all odd primes.
Terms
- a(0) =27a(1) =125a(2) =243a(3) =343a(4) =1331a(5) =2187a(6) =2197a(7) =3125a(8) =3375a(9) =4913a(10) =6859a(11) =9261a(12) =12167a(13) =16807a(14) =24389a(15) =29791a(16) =30375a(17) =35937a(18) =42875a(19) =50653a(20) =59319a(21) =68921a(22) =78125a(23) =79507a(24) =83349a(25) =84375a(26) =103823a(27) =132651a(28) =148877a(29) =161051
External references
- oeis: A369118