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!)
A076054 a(n) = Sum_{k=1..n} A006513(k). 0

%I #10 Feb 03 2022 11:17:22

%S 1,3,5,6,7,8,10,12,14,16,17,19,21,22,23,24,26,27,28,29,30,32,34,35,36,

%T 37,38,40,42,44,46,48,49,50,51,53,55,57,59,61,63,65,66,67,68,69,70,72,

%U 74,76,78,80,82,84,86,87,88,89,90,91,92,93,94,95,97,99,101,103,105,107

%N a(n) = Sum_{k=1..n} A006513(k).

%F a(n) seems to be asymptotic to (3/2)*n.

%o (PARI) f(n) = if (n%2, (3*n+1)/2, n/2); \\ A014682

%o g(n) = my(last = n); while (1, my(new = f(f(last))); if (new == last, return(new)); last = new;); \\ A006513

%o a(n) = sum(k=1, n, g(k)); \\ _Michel Marcus_, Feb 03 2022

%Y Cf. A006513, A014682.

%K nonn

%O 1,2

%A _Benoit Cloitre_, Oct 30 2002

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 March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)