Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A054267
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A054267 Sum of composite numbers between prime p and nextprime(p) is palindromic with restriction 'p + 1 <> sum'. +0
5
109, 193, 509, 661, 1439, 3433, 3889, 3967, 4549, 6661, 7001, 8467, 10099, 17203, 18583, 24847, 25117, 26497, 29587, 30497, 31307, 47569, 47869, 49789, 53939, 54139, 66361, 67061, 70901, 71011, 102199, 132229, 158269, 171179, 185699 (list; graph; listen)
OFFSET

0,1

EXAMPLE

a(4)=661 since between 661 and next prime 673 we get the palindromic sum 662 + 663 + 664 + 665 + 666 + 667 + 668 + 669 + 670 + 671 + 672 = 7337.

CROSSREFS

Cf. A046933, A054264, A054265, A054266, A054268.

Sequence in context: A142945 A142079 A142224 this_sequence A142301 A060978 A061879

Adjacent sequences: A054264 A054265 A054266 this_sequence A054268 A054269 A054270

KEYWORD

nonn,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Apr 15 2000.

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


AT&T Labs Research