A037070 a(n)-th prime is the smallest prime containing exactly n 9's.

1, 8, 46, 303, 5133, 17984, 216816, 1270607, 41146179, 420243162, 2524038155, 36159205628, 343392568900, 1955010428258

Offset

0,2

Links

Table of n, a(n) for n=0..13.

Andrew R. Booker, The Nth Prime Page

Mathematica

(* see A037071 for f *) PrimePi[ Table[ f[n, 9], {n, 1, 13}]]

Crossrefs

Cf. A037071, A034388.

Sequence in context: A083421 A113992 A352094 * A141788 A317224 A368269

Adjacent sequences: A037067 A037068 A037069 * A037071 A037072 A037073

Keyword

nonn,base,hard

Author

Patrick De Geest, Jan 04 1999

Extensions

One more term from Vladeta Jovovic, Jan 10 2002

a(0)=1 prepended by Sean A. Irvine, Dec 06 2020

Status

approved