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

 

Logo

Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".

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 A254015 A254022

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 | 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 December 6 05:18 EST 2016. Contains 278773 sequences.