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!)
A137173 A006516 at positions with even indices, A007582 at positions with odd indices. 2

%I #6 Nov 22 2018 03:11:57

%S 0,1,1,3,6,10,28,36,120,136,496,528,2016,2080,8128,8256,32640,32896,

%T 130816,131328,523776,524800,2096128,2098176,8386560,8390656,33550336,

%U 33558528,134209536,134225920,536854528,536887296,2147450880,2147516416

%N A006516 at positions with even indices, A007582 at positions with odd indices.

%F a(2n)=A006516(n). a(2n+1)=A007582(n).

%F a(2n)+a(2n+1) = A000302(n). a(2n+1)-a(2n)=A000079(n).

%F G.f.: -x*(-1-x+3*x^2) / ( (2*x+1)*(2*x-1)*(2*x^2-1) ). - _R. J. Mathar_, Nov 22 2018

%K nonn,easy

%O 0,4

%A _Paul Curtz_, May 11 2008

%E Edited by _R. J. Mathar_, Jul 16 2008

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 April 23 15:20 EDT 2024. Contains 371916 sequences. (Running on oeis4.)