The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A058847 Palindromes that are the sum of consecutive initial odd primes. 3
 3, 8, 5115, 6336, 81218, 3091903, 7843487, 792727297, 37706560773, 30398022089303, 263888373888362, 81120957675902118 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS 3 + 5 + 7 + 11 + 13 + 17 + ... + z = n. For values of z see A058846. a(13) > 1.2*10^26, if it exists. - Giovanni Resta, Sep 01 2018 LINKS P. De Geest, Palindromic Sums FORMULA a(n) = A071148(A058845(n)). - R. J. Mathar, Sep 09 2015 MATHEMATICA palQ[n_]:=Module[{idn=IntegerDigits[n]}, idn==Reverse[idn]]; Select[ Accumulate[ Prime[Range[2, 25000000]]], palQ] (* The program takes a long time to run and only generates the first 11 terms of the sequence *) (* Harvey P. Dale, Aug 24 2014 *) CROSSREFS Cf. A058845, A058846, A038583. Sequence in context: A268141 A278974 A063103 * A088110 A122759 A247042 Adjacent sequences:  A058844 A058845 A058846 * A058848 A058849 A058850 KEYWORD nonn,base,more AUTHOR Patrick De Geest, Dec 15 2000 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified June 5 16:19 EDT 2020. Contains 334852 sequences. (Running on oeis4.)