a(n) is the least k such that the period of the decimal expansion of 1/k is A000204(n).

A173491

a(n) is the least k such that the period of the decimal expansion of 1/k is A000204(n).

Terms

    a(0) =3a(1) =27a(2) =101a(3) =239a(4) =21649a(5) =19a(6) =3191a(7) =35121409a(9) =2241a(10) =797a(11) =967a(13) =3373a(14) =60787a(15) =509538919a(17) =5779a(18) =37397a(19) =423557

External references