A072724
formatted as a simple table:
n
a(n)
1
1
2
4
3
8227
4
3427918353
[1,4,8227,3427918353]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 27 14:50 EST 2009. Contains 167570 sequences.
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