Imprimitive Carmichael numbers: Carmichael numbers m such that if m = p_1 * p_2 * ... *p_k is the prime factorization of m then g(m) = gcd(p_1 - 1, ..., p_k - 1) > sqrt(lambda(m)), where lambda is the Carmichael lambda function (A002322).

A328935

Imprimitive Carmichael numbers: Carmichael numbers m such that if m = p_1 * p_2 * ... *p_k is the prime factorization of m then g(m) = gcd(p_1 - 1, ..., p_k - 1) > sqrt(lambda(m)), where lambda is the Carmichael lambda function (A002322).

Terms

    a(0) =294409a(1) =399001a(2) =488881a(3) =512461a(4) =1152271a(5) =1461241a(6) =3057601a(7) =3828001a(8) =4335241a(9) =6189121a(10) =6733693a(11) =10267951a(12) =14676481a(13) =17098369a(14) =19384289a(15) =23382529a(16) =50201089a(17) =53711113a(18) =56052361a(19) =64377991a(20) =68154001a(21) =79624621a(22) =82929001a(23) =84350561a(24) =96895441a(25) =115039081a(26) =118901521a(27) =133800661

External references