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!)
A143930 Aliquot sequence starting at 3630. 2

%I #21 Oct 16 2023 18:01:10

%S 3630,5946,5958,6990,9858,10878,15114,18006,18018,34398,61362,90894,

%T 90906,93894,93906,124974,153018,178560,457920,1188000,3529440,

%U 9776160,26028000,69107040,187267680,478980000,1268710560,4065625440,10164078720,25833761280

%N Aliquot sequence starting at 3630.

%H T. D. Noe, <a href="/A143930/b143930.txt">Table of n, a(n) for n = 0..2624</a> [complete sequence from Varona data file "SQ3630-to-1"]

%H Manuel Benito, Wolfgang Creyaufmüller, Juan L. Varona, and Paul Zimmermann, <a href="https://projecteuclid.org/euclid.em/1062621215">Aliquot Sequence 3630 Ends After Reaching 100 Digits</a>, Experimental Mathematics, Vol. 11, No. 2, 2002, pp. 201-206.

%H Juan L. Varona, <a href="http://www.unirioja.es/cu/jvarona/aliquot.html">Aliquot Sequences</a>

%F a(n+1) = A001065(a(n)). - _R. J. Mathar_, Oct 11 2017

%t NestList[DivisorSigma[1,#]-#&,3630,50] (* _Paolo Xausa_, Oct 16 2023 *)

%Y Cf. A001065.

%K nonn,fini,full,look

%O 0,1

%A _N. J. A. Sloane_, Nov 30 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 24 16:56 EDT 2024. Contains 371962 sequences. (Running on oeis4.)