Smallest integer k such that the number of iterations of Carmichael lambda function (A002322) needed to reach 1 starting at k (k is counted) is n.

A173927

Smallest integer k such that the number of iterations of Carmichael lambda function (A002322) needed to reach 1 starting at k (k is counted) is n.

Terms

    a(0) =1a(1) =2a(2) =3a(3) =5a(4) =11a(5) =23a(6) =47a(7) =283a(8) =719a(9) =1439a(10) =2879a(11) =34549a(12) =138197a(13) =531441a(14) =1594323a(15) =4782969a(16) =14348907a(17) =43046721a(18) =86093443a(19) =258280327a(20) =688747547

External references