Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A068536
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A068536 Numbers n such that n^2 + (reversal of n)^2 is a perfect square. Ignore leading 0's. +0
1
88209, 90288, 125928, 196020, 368280, 829521 (list; graph; listen)
OFFSET

1,1

COMMENT

88209^2 + 90288^2 = 126225^2, so 88209 belongs to the sequence.

MATHEMATICA

Do[If[IntegerQ[Sqrt[n^2 + FromDigits[Reverse[IntegerDigits[n]]]^2]], Print[n]], {n, 1, 10^6}]

CROSSREFS

Sequence in context: A069313 A022207 A118899 this_sequence A022201 A031857 A022548

Adjacent sequences: A068533 A068534 A068535 this_sequence A068537 A068538 A068539

KEYWORD

base,nonn

AUTHOR

Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Mar 22 2002

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 November 23 17:09 EST 2009. Contains 167438 sequences.


AT&T Labs Research