A087388 a(1) = 2; a(n+1) is the least prime formed by adding one or more digits to the digit reversal of a(n).

2, 23, 3203, 302317, 7132031, 130231711, 1171320317, 71302317113, 31171320317057, 7507130231711321, 123117132031705727, 7275071302317113213, 312311713203170572751, 157275071302317113213041

Offset

1,1

Links

Table of n, a(n) for n=1..14.

Example

a(2) = 23, a(3) is the smallest prime beginning with 32 and is 3203.

Crossrefs

Cf. A087389, A087390, A087391.

Sequence in context: A124513 A081781 A088734 * A117507 A068656 A030997

Adjacent sequences: A087385 A087386 A087387 * A087389 A087390 A087391

Keyword

base,nonn

Author

Amarnath Murthy, Sep 09 2003

Extensions

More terms from David Wasserman, May 25 2005

Status

approved