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

 

Logo

Annual Appeal: Today, Nov 11 2014, is the 4th anniversary of the launch of the new OEIS web site. 70,000 sequences have been added in these four years, all edited by volunteers. Please make a donation (tax deductible in the US) to help keep the OEIS running.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A136476 Odd primitive abundant numbers n such that n = x^2 + x + y^2 with y^2 < 2*x; a subsequence of A006038. 3
9555, 12705, 15015, 18585, 21105, 32445, 41055, 43065, 46035, 47355, 51765, 125895, 129465, 228735, 257565, 324555, 375165, 400785, 409185, 537285, 693225, 4513509, 5569641, 5581695, 5959065, 6084351, 6338535, 8824095, 9597315 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

x values in A136477 and y values in A136478

LINKS

Table of n, a(n) for n=1..29.

EXAMPLE

9555=97^2+97+7^2 and 9555 odd primitive abundant number

CROSSREFS

Cf. A006038, A136477, A136478, A136479.

Sequence in context: A251909 A251906 A223367 * A136479 A133449 A210409

Adjacent sequences:  A136473 A136474 A136475 * A136477 A136478 A136479

KEYWORD

nonn

AUTHOR

Pierre CAMI, Jan 02 2008

STATUS

approved

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

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

Last modified December 18 08:26 EST 2014. Contains 252114 sequences.