login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A343776 G.f.: Product_{k>=1} eta(x^(k^2)). 1

%I #10 Apr 29 2021 10:20:29

%S 1,-1,-1,0,-1,2,1,1,-1,-1,2,0,-1,0,-2,-3,-1,2,0,1,5,-2,1,-2,2,-1,0,2,

%T 0,-1,-1,3,-4,4,0,-4,-5,-2,-3,7,2,1,-6,-2,4,-2,2,1,7,-5,11,6,0,-1,1,

%U -12,-11,5,-3,-2,-8,9,8,3,1,2,-5,-4,5,-11,-6,0,7,7,4,-17,3,-5,8,9,-4,-1,-10,5,-6,24,-5,10,0

%N G.f.: Product_{k>=1} eta(x^(k^2)).

%H Seiichi Manyama, <a href="/A343776/b343776.txt">Table of n, a(n) for n = 0..10000</a>

%o (PARI) my(N=99, x='x+O('x^N)); Vec(prod(k=1, sqrt(N), eta(x^(k^2))))

%Y Convolution inverse of A004101.

%Y Cf. A010815, A280451, A288098.

%K sign

%O 0,6

%A _Seiichi Manyama_, Apr 29 2021

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 26 17:14 EDT 2024. Contains 374636 sequences. (Running on oeis4.)