a(n) is the least number k such that A348213(k) = n, or -1 if no such number exists.

A348214

a(n) is the least number k such that A348213(k) = n, or -1 if no such number exists.

Terms

    a(0) =1a(1) =2a(2) =64a(3) =50624a(4) =235053a(5) =15800785a(6) =36903321a(7) =4038974856

External references