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

 

Logo

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A223708 Nonzero terms in A107628; related to quadratic forms ax^2 + bxy + cy^2. 2
1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 2, 2, 1, 1, 2, 2, 2, 2, 3, 2, 1, 2, 3, 2, 2, 2, 3, 3, 2, 2, 3, 2, 1, 3, 4, 2, 2, 2, 3, 3, 2, 4, 4, 2, 2, 2, 5, 4, 2, 2, 3, 4, 2, 2, 5, 2, 2, 4, 6, 4, 2, 2, 3, 3, 3, 4, 4, 3, 2, 4, 6, 3, 2, 2, 4, 4, 3, 3, 6, 4, 1, 5, 6, 4, 3, 2, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,7

LINKS

T. D. Noe, Table of n, a(n) for n = 1..5000

CROSSREFS

Cf. A107628.

Sequence in context: A218541 A213911 A081355 * A060778 A096492 A053874

Adjacent sequences:  A223705 A223706 A223707 * A223709 A223710 A223711

KEYWORD

nonn

AUTHOR

T. D. Noe, Apr 09 2013

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
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 17 18:48 EST 2019. Contains 319251 sequences. (Running on oeis4.)