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A008889 Aliquot sequence starting at 150. 3
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, 1467588 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

REFERENCES

R. K. Guy, Unsolved Problems in Number Theory, B6.

LINKS

Christophe CLAVIER, Aliquot Sequences

FORMULA

a(n)=A008888(n+1). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 28 2008]

MAPLE

f := proc(n) option remember; if n = 0 then 150; else sigma(f(n-1))-f(n-1); fi; end:

CROSSREFS

Sequence in context: A048706 A054729 A116185 * A184075 A207044 A063829

Adjacent sequences:  A008886 A008887 A008888 * A008890 A008891 A008892

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 17 09:07 EST 2012. Contains 206000 sequences.