A037068 a(n)-th prime is the smallest prime containing exactly n 8's.

1, 23, 152, 1107, 8611, 70478, 1793210, 5156463, 45470645, 2074530409, 11397691034, 33578243459, 639583252186

Offset

0,2

Links

Table of n, a(n) for n=0..12.

Andrew R. Booker, The Nth Prime Page

Mathematica

(* see A037069 for f *) PrimePi[ Table[ f[n, 8], {n, 1, 13}]]

Crossrefs

Cf. A037069, A034388.

Sequence in context: A126491 A142044 A142935 * A122162 A122615 A231216

Adjacent sequences: A037065 A037066 A037067 * A037069 A037070 A037071

Keyword

nonn,base,hard

Author

Patrick De Geest, Jan 04 1999

Extensions

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

Status

approved