login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A085253 Numbers having no representation as sum of two powerful numbers (A001694). 6

%I

%S 1,3,4,6,7,11,14,15,19,21,22,23,27,30,38,39,42,46,47,49,51,55,56,60,

%T 62,66,67,69,70,71,75,77,78,79,83,84,86,87,92,93,94,95,102,103,105,

%U 107,110,111,114,115,118,119,120,123,131,138,139,142,143,147,151,154

%N Numbers having no representation as sum of two powerful numbers (A001694).

%C A085252(a(n))=0; complement of A076871.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PowerfulNumber.html">Powerful Number</a>

%Y Different from A075434.

%K nonn

%O 1,2

%A _Reinhard Zumkeller_, Jun 23 2003

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 20 04:12 EST 2020. Contains 332063 sequences. (Running on oeis4.)