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A008888
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Aliquot sequence starting at 138.
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5
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138, 150, 222, 234, 312, 528, 960, 2088, 3762, 5598, 6570, 10746, 13254, 13830, 19434, 20886, 21606, 25098, 26742, 26754, 40446, 63234, 77406, 110754, 171486, 253458, 295740, 647748, 1077612
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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REFERENCES
| R. K. Guy, Unsolved Problems in Number Theory, B6.
Enoch Haga, Exploring Prime Numbers on Your PC, 2nd ed., 1998, pages 83-84 and Table 8, page 46. ISBN 1-885794-16-9.
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LINKS
| T. D. Noe, Table of n, a(n) for n=0..179
Christophe CLAVIER, Aliquot Sequences
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MAPLE
| f := proc(n) option remember; if n = 0 then 138; else sigma(f(n-1))-f(n-1); fi; end:
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CROSSREFS
| Sequence in context: A031964 A114820 A107939 * A045045 A108156 A202441
Adjacent sequences: A008885 A008886 A008887 * A008889 A008890 A008891
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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