1,2

This sequence is a subsequence of A057809. There is no further term up to 16*10^6.

a(6) > 1.4*10^22, if it exists. - Giovanni Resta, Aug 31 2018

Table of n, a(n) for n=1..5.

24300=pi(24300)*(2+4+3+0+0).

Cf. A057809, A140173.

Sequence in context: A273661 A322624 A338044 * A246741 A089016 A262004

Adjacent sequences: A140171 A140172 A140173 * A140175 A140176 A140177

base,more,nonn

Farideh Firoozbakht, May 15 2008

approved