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

 

Logo

The October issue of the Notices of the Amer. Math. Soc. has an article about the OEIS.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A046379 Palindromes with exactly 5 palindromic prime factors (counted with multiplicity). 1
252, 616, 5445, 5775, 8888, 48884, 268862, 448844, 526625, 577775, 1478741, 2468642, 3498943, 5304035, 13577531, 17377371, 22666622, 29244292, 33999933, 124666421, 151202151, 1144664411, 36466266463, 334826628433, 534874478435, 592723327295, 597593395795 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Lars Blomberg, Table of n, a(n) for n = 1..44, terms < 10^16.

EXAMPLE

The palindrome 151202151 is a term since it has 5 factors 3^2 101 181 919, all palindromic.

CROSSREFS

Cf. A046331.

Sequence in context: A024757 A254467 A242570 * A250794 A245858 A200884

Adjacent sequences:  A046376 A046377 A046378 * A046380 A046381 A046382

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, Jun 15 1998

EXTENSIONS

More terms from Lars Blomberg, Nov 06 2015

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 25 21:12 EDT 2018. Contains 315425 sequences. (Running on oeis4.)