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A037070
a(n)-th prime is the smallest prime containing exactly n 9's.
2
1, 8, 46, 303, 5133, 17984, 216816, 1270607, 41146179, 420243162, 2524038155, 36159205628, 343392568900, 1955010428258
OFFSET
0,2
MATHEMATICA
(* see A037071 for f *) PrimePi[ Table[ f[n, 9], {n, 1, 13}]]
CROSSREFS
Sequence in context: A083421 A113992 A352094 * A141788 A317224 A368269
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