A172386 The prime which gives n primes as quickly as possible by concatenation of numbers incremented in sequence.

2, 983, 1327373, 12695039657

Offset

1,1

Comments

This is analogous to A172257, with increments in place of decrements.

Links

Table of n, a(n) for n=1..4.

Example

23 comes from 2, explaining the first term. Until 983, no prime gives primes with concatenation of 5 and 7 numbers.

Crossrefs

A172257

Sequence in context: A258586 A176940 A337309 * A079233 A194191 A190579

Adjacent sequences: A172383 A172384 A172385 * A172387 A172388 A172389

Keyword

base,nonn

Author

James G. Merickel, Feb 01 2010

Status

approved