This site is supported by donations to The OEIS Foundation.

"Email this user" was broken Aug 14 to 9am Aug 16. If you sent someone a message in this period, please send it again.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A035264 Nonzero terms in expansion of Dirichlet series Product_p (1-(Kronecker(m,p)+1)*p^(-s)+Kronecker(m,p)*p^(-2s))^(-1) for m = 29. 2

%I

%S 1,4,5,7,9,13,16,20,23,25,28,29,35,36,45,49,52,53,59,63,64,65,67,71,

%T 80,81,83,91,92,100,103,107,109,112,115,116,117,121,125,139,140,144,

%U 145,149,151,161,167,169,173,175,179,180,181,196,197,199,203,207,208

%N Nonzero terms in expansion of Dirichlet series Product_p (1-(Kronecker(m,p)+1)*p^(-s)+Kronecker(m,p)*p^(-2s))^(-1) for m = 29.

%C Terms seem to be exactly the numbers represented by the indefinite binary quadratic form (1, 7, 5) with discriminant 29 (Lagrange-Gauss reduced (1, 5, -1)). - _Peter Luschny_, Jun 24 2014

%H Peter Luschny, <a href="/A035264/b035264.txt">Table of n, a(n) for n = 1..1983</a>

%H N. J. A. Sloane et al., <a href="https://oeis.org/wiki/Binary_Quadratic_Forms_and_OEIS">Binary Quadratic Forms and OEIS</a> (Index to related sequences, programs, references)

%o (PARI) direuler(p=2,101,1/(1-(kronecker(m,p)*(X-X^2))-X))

%Y Cf. A038901.

%K nonn

%O 1,2

%A _N. J. A. Sloane_, Dec 11 1999

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

Last modified August 16 17:17 EDT 2017. Contains 290626 sequences.