login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A050721 Primes arising in A083571. 3
2, 3, 11, 109, 173, 5513600773 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Prime indices of palindromic triangular numbers.

LINKS

P. De Geest, Subsets of palindromic triangulars

CROSSREFS

Cf. A008510, A050722.

Sequence in context: A065378 A161721 A079853 * A058114 A042337 A061482

Adjacent sequences:  A050718 A050719 A050720 * A050722 A050723 A050724

KEYWORD

nonn,base,hard

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Sep 15 1999.

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 12 03:42 EST 2012. Contains 205360 sequences.