Squarefree composite numbers n such that p^2 - 1 divides n^2 - 1 for every prime p dividing n.
A287119
Squarefree composite numbers n such that p^2 - 1 divides n^2 - 1 for every prime p dividing n.
Terms
- a(0) =8569a(1) =39689a(2) =321265a(3) =430199a(4) =564719a(5) =585311a(6) =608399a(7) =7056721a(8) =11255201a(9) =17966519a(10) =18996769a(11) =74775791a(12) =75669551a(13) =136209151a(14) =321239359a(15) =446660929a(16) =547674049a(17) =866223359a(18) =1068433631a(19) =1227804929a(20) =1291695119a(21) =2315403649a(22) =2585930689a(23) =7229159729a(24) =7809974369a(25) =8117634239
External references
- oeis: A287119