The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A014866 Numbers n such that n divides s(n), where s(1)=1, s(k)=16*s(k-1)+k. 0

%I

%S 1,2,3,4,5,6,8,9,10,12,15,16,18,20,21,24,25,27,30,34,36,39,40,42,45,

%T 48,50,54,55,60,63,68,72,75,78,80,81,84,90,100,102,105,108,110,117,

%U 120,125,126,135,136,144,147,150,155,156,162,165,168,170,171,180,189

%N Numbers n such that n divides s(n), where s(1)=1, s(k)=16*s(k-1)+k.

%t nxt[{n_,a_}]:={n+1,16a+n+1}; With[{nn=200},Select[Thread[{Range[nn+1], NestList[ nxt,{1,1},nn][[All,2]]}],Divisible[#[[2]],#[[1]]]&]][[All,1]] (* _Harvey P. Dale_, Jul 24 2018 *)

%K nonn

%O 1,2

%A _N. J. A. Sloane_, _Olivier GĂ©rard_

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.

Last modified June 24 22:23 EDT 2021. Contains 345445 sequences. (Running on oeis4.)