0,2

a(n)=p[1+10^n]-p[10^n]=p[1+10^n]-A006988(n).

a(19)=22 because the (10^18)th prime is 44211790234832169331, the (1+10^18)th prime is 44211790234832169353.

Cf. A006988, A074325, A038833, A074382.

Sequence in context: A038108 A087327 A002511 this_sequence A107505 A074400 A165607

Adjacent sequences: A074380 A074381 A074382 this_sequence A074384 A074385 A074386

hard,more,nonn

Labos E. (labos(AT)ana.sote.hu), Aug 22 2002

a(19) from Max Alekseyev (maxale(AT)gmail.com), May 08 2009