Carmichael numbers k such that k-1 is a Novak-Carmichael number.

Terms

a(0) =1729a(1) =6601a(2) =10585a(3) =15841a(4) =41041a(5) =46657a(6) =658801a(7) =1461241a(8) =1615681a(9) =1857241a(10) =2433601a(11) =3057601a(12) =3581761a(13) =4767841a(14) =5031181a(15) =5148001a(16) =6840001a(17) =7207201a(18) =8355841a(19) =10024561a(20) =10402561a(21) =14469841a(22) =14676481a(23) =17236801a(24) =17316001a(25) =19683001a(26) =25603201a(27) =35571601a(28) =35703361a(29) =38624041