1,1

Source

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

C. K. Caldwell, Prime Curios, 31414...51413 (53-digits)

Cf. A002385.

Adjacent sequences: A039951 A039952 A039953 this_sequence A039955 A039956 A039957

Sequence in context: A083974 A135698 A088102 this_sequence A134215 A034994 A139541

base,nonn,bref

G. L. Honaker, Jr. (honak3r(AT)bvunet.net)

Carlos B. Rivera (crivera(AT)primepuzzles.net) reports that the next two members of this sequence have 301 and 921 digits. The first has been tested with APRTE-CLE. The second one is only a StrongPseudoPrime at the moment.