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A127077
a(1)=1. a(n) = a(n-1) + (product of the earlier terms {among terms a(1) through a(n-1)} which are coprime to n).
+0
2
1, 2, 4, 5, 13, 78, 40638, 40703, 21206263, 11221082003820, 15964509207021745126354079410538220, 15964509207021745126410184714526005
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.
AT&T Labs Research
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