A030521 Product of first n palindromic primes plus 1.

3, 7, 31, 211, 2311, 233311, 30563611, 4615105111, 835334024911, 159548798757811, 49938774011194531, 17628387225951669091, 6575388435279972570571, 2518373770712229494528311, 1830857731307790842522081371, 1385959302599997667789215597091

Offset

1,1

Comments

The subsequence of those values which are themselves primes begins: 3, 7, 31, 211, 2311, 6575388435279972570571. - Jonathan Vos Post, Feb 09 2011

Links

Table of n, a(n) for n=1..16.

Mathematica

palpQ[n_]:=Module[{idn=IntegerDigits[n]}, idn==Reverse[idn]]; #+1&/@FoldList[ Times, 1, Select[Prime[Range[500]], palpQ]]  (* Harvey P. Dale, Apr 23 2011 *)

Crossrefs

Cf. A019515, A030522.

Sequence in context: A087864 A066676 A073917 * A105767 A063896 A277028

Adjacent sequences: A030518 A030519 A030520 * A030522 A030523 A030524

Keyword

nonn,base

Author

Felice Russo

Extensions

Corrected and extended by Patrick De Geest, Sep 15 2000

More terms from Harvey P. Dale, Apr 23 2011

Status

approved