Terms of A319928 that are congruent to 4 modulo 8: Numbers k == 4 (mod 8) such that there is no other m such that (Z/mZ)* is isomorphic to (Z/kZ)*, where (Z/kZ)* is the multiplicative group of integers modulo k.
A372755
Terms of A319928 that are congruent to 4 modulo 8: Numbers k == 4 (mod 8) such that there is no other m such that (Z/mZ)* is isomorphic to (Z/kZ)*, where (Z/kZ)* is the multiplicative group of integers modulo k.
Terms
- a(0) =252a(1) =324a(2) =2052a(3) =2268a(4) =3276a(5) =4788a(6) =6156a(7) =7452a(8) =7812a(9) =10836a(10) =12348a(11) =14364a(12) =14868a(13) =15228a(14) =16884a(15) =17172a(16) =18396a(17) =19908a(18) =20916a(19) =22572a(20) =23652a(21) =24444a(22) =25596a(23) =25956a(24) =26244a(25) =26892a(26) =26964a(27) =31428a(28) =34668a(29) =35028
External references
- oeis: A372755