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!)
A033768 Product t2(q^d); d | 9, where t2 = theta2(q)/(2*q^(1/4)). 2
1, 1, 0, 2, 1, 0, 2, 0, 0, 3, 3, 0, 3, 2, 0, 4, 0, 0, 4, 4, 0, 3, 1, 0, 5, 0, 0, 3, 5, 0, 6, 3, 0, 7, 0, 0, 4, 5, 0, 5, 4, 0, 4, 0, 0, 8, 5, 0, 6, 1, 0, 5, 0, 0, 7, 7, 0, 6, 5, 0, 7, 0, 0, 8, 7, 0, 7, 4, 0, 5, 0, 0, 8, 9, 0, 10, 0, 0, 9, 0, 0, 4, 7, 0, 7, 6, 0, 7 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

COMMENTS

Also the number of positive odd solutions to equation a^2 + 3*b^2 + 9*c^2 = 8*n + 13. - Seiichi Manyama, May 29 2017

LINKS

Seiichi Manyama, Table of n, a(n) for n = 0..10000

CROSSREFS

Sequence in context: A129449 A033798 A033792 * A033786 A137696 A275731

Adjacent sequences:  A033765 A033766 A033767 * A033769 A033770 A033771

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from Seiichi Manyama, May 22 2017

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 July 5 04:30 EDT 2020. Contains 335459 sequences. (Running on oeis4.)