Cyclic numbers: k such that k and phi(k) are relatively prime; also k such that there is just one group of order k, i.e., A000001(k) = 1.
A003277
Cyclic numbers: k such that k and phi(k) are relatively prime; also k such that there is just one group of order k, i.e., A000001(k) = 1.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =5a(4) =7a(5) =11a(6) =13a(7) =15a(8) =17a(9) =19a(10) =23a(11) =29a(12) =31a(13) =33a(14) =35a(15) =37a(16) =41a(17) =43a(18) =47a(19) =51a(20) =53a(21) =59a(22) =61a(23) =65a(24) =67a(25) =69a(26) =71a(27) =73a(28) =77a(29) =79
External references
- oeis: A003277