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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A055409 Number of points in N^10 of norm <= n. 2
1, 11, 396, 5258, 43154, 241283, 1053323, 3813001, 11887373, 33107532, 83570177, 195642892, 427116918, 883782766, 1736506732, 3275680338, 5938894018, 10431199387, 17749369808, 29449543675, 47615028191, 75399727379 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..21.

FORMULA

a(n) = [x^(n^2)] (1 + theta_3(x))^10/(1024*(1 - x)), where theta_3() is the Jacobi theta function. - Ilya Gutkovskiy, Apr 15 2018

CROSSREFS

Sequence in context: A286914 A289731 A160391 * A067406 A046281 A180833

Adjacent sequences:  A055406 A055407 A055408 * A055410 A055411 A055412

KEYWORD

nonn

AUTHOR

David W. Wilson

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 March 21 01:18 EDT 2019. Contains 321356 sequences. (Running on oeis4.)