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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A028570 Numbers n such that n(n+9) is a palindrome. 0
0, 2, 12, 44, 137, 157, 167, 248, 258, 1639, 1664, 1694, 5392, 15904, 16997, 160187, 487619, 1547147, 14674184, 14790532, 15019614, 15336644, 25234083, 26132578, 26211438, 26216753 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..26.

P. De Geest, Palindromic Quasipronics of the form n(n+x)

Erich Friedman, What's Special About This Number? (See entries 258, 1664.)

CROSSREFS

Sequence in context: A203278 A013704 A025495 * A009074 A267344 A275132

Adjacent sequences:  A028567 A028568 A028569 * A028571 A028572 A028573

KEYWORD

nonn,base,easy

AUTHOR

Patrick De Geest

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 January 22 22:38 EST 2018. Contains 298093 sequences.