Numbers n such that (2^n + 1) / gcd(n, 2^n + 1) is not squarefree.

Terms

a(0) =182a(1) =546a(2) =910a(3) =1274a(4) =1638a(5) =2002a(6) =2366a(7) =2730a(8) =3094a(9) =3458a(10) =3822a(11) =4186a(12) =4550a(13) =4914a(14) =5278a(15) =5642a(16) =6006a(17) =6370a(18) =6734a(19) =7098a(20) =7462a(21) =7826a(22) =8190a(23) =8554a(24) =8918a(25) =9282a(26) =9646a(27) =10010a(28) =10374a(29) =10738