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!)
A033774 Product t2(q^d); d | 15, where t2 = theta2(q)/(2*q^(1/4)). 1
1, 1, 0, 2, 1, 1, 3, 0, 2, 3, 2, 2, 1, 1, 2, 6, 2, 1, 7, 4, 3, 7, 0, 4, 10, 4, 4, 2, 4, 5, 10, 4, 1, 13, 6, 4, 12, 1, 4, 14, 5, 4, 3, 6, 5, 15, 8, 0, 16, 6, 8, 20, 2, 8, 18, 8, 8, 3, 8, 8, 25, 9, 2, 20, 7, 10, 21, 2, 10, 25, 8, 12, 1, 12, 12, 24, 10, 1, 30, 8, 9, 28 (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 + 5*c^2 + 15*d^2 = 8*n + 24. - Seiichi Manyama, May 29 2017

LINKS

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

CROSSREFS

Sequence in context: A194516 A299235 A245840 * A033804 A103910 A155993

Adjacent sequences:  A033771 A033772 A033773 * A033775 A033776 A033777

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from Seiichi Manyama, May 23 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 06:34 EDT 2020. Contains 335459 sequences. (Running on oeis4.)