OFFSET
1,1
COMMENTS
It is conjectured that the sequence is infinite.
LINKS
Ulrich Krug, Aurelien Herault, and Harvey P. Dale, Table of n, a(n) for n = 1..300 (the initial 83 terms were provided by Ulrich Krug and Aurelien Herault)
EXAMPLE
2+prime(2) = 2+3 = 5; 3+prime(3) = 3+5 = 8; 270527+prime(270527) = 270527+3808177 = 4078704, etc.
MATHEMATICA
Select[#+Prime[#]&/@Prime[Range[50000]], IntegerDigits[#] == Reverse[ IntegerDigits[ #]]&] (* Harvey P. Dale, Sep 09 2012 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Ulrich Krug (leuchtfeuer37(AT)gmx.de), Jan 22 2009, Mar 02 2009, Mar 04 2009
EXTENSIONS
Edited by N. J. A. Sloane, Mar 02 2009
a(60)-a(83) from Aurelien Herault (aurelien(AT)a2studio.fr), Mar 16 2009
Examples culled by D. S. McNeil, Nov 21 2010
STATUS
approved