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A143930
Aliquot sequence starting at 3630.
2
3630, 5946, 5958, 6990, 9858, 10878, 15114, 18006, 18018, 34398, 61362, 90894, 90906, 93894, 93906, 124974, 153018, 178560, 457920, 1188000, 3529440, 9776160, 26028000, 69107040, 187267680, 478980000, 1268710560, 4065625440, 10164078720, 25833761280
OFFSET
0,1
LINKS
T. D. Noe, Table of n, a(n) for n = 0..2624 [complete sequence from Varona data file "SQ3630-to-1"]
Manuel Benito, Wolfgang Creyaufmüller, Juan L. Varona, and Paul Zimmermann, Aliquot Sequence 3630 Ends After Reaching 100 Digits, Experimental Mathematics, Vol. 11, No. 2, 2002, pp. 201-206.
Juan L. Varona, Aliquot Sequences
FORMULA
a(n+1) = A001065(a(n)). - R. J. Mathar, Oct 11 2017
MATHEMATICA
NestList[DivisorSigma[1, #]-#&, 3630, 50] (* Paolo Xausa, Oct 16 2023 *)
CROSSREFS
Cf. A001065.
Sequence in context: A329540 A223414 A046835 * A341264 A287219 A232120
KEYWORD
nonn,fini,full,look
AUTHOR
N. J. A. Sloane, Nov 30 2008
STATUS
approved