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

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A120147 a(1)=23; a(n)=floor((47+sum(a(1) to a(n-1)))/2). 1
23, 35, 52, 78, 117, 176, 264, 396, 594, 891, 1336, 2004, 3006, 4509, 6764, 10146, 15219, 22828, 34242, 51363, 77045, 115567, 173351, 260026, 390039, 585059, 877588, 1316382, 1974573, 2961860, 4442790, 6664185, 9996277, 14994416 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

MATHEMATICA

nxt[{t_, a_}]:=Module[{k=Floor[(47+t)/2]}, {t+k, k}]; NestList[nxt, {23, 23}, 40][[All, 2]] (* Harvey P. Dale, Oct 29 2020 *)

CROSSREFS

Cf. A073941, A112088, A072493.

Sequence in context: A230123 A049851 A223606 * A166499 A045533 A329179

Adjacent sequences:  A120144 A120145 A120146 * A120148 A120149 A120150

KEYWORD

nonn

AUTHOR

Graeme McRae, Jun 10 2006

STATUS

approved

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 1 05:20 EST 2021. Contains 349426 sequences. (Running on oeis4.)