a(n) is the largest integer k such that A345073(k) = n.

A345074

a(n) is the largest integer k such that A345073(k) = n.

Terms

    a(0) =3a(1) =54a(2) =458a(3) =3480a(4) =25867a(5) =191351a(6) =1414204a(7) =10450027a(8) =77216338

External references