A001905
formatted as a simple table:
n
a(n)
1
1
2
17
3
1835
4
195013
5
3887409
6
58621671097
[1,17,1835,195013,3887409,58621671097]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 2 11:54 EST 2009. Contains 167921 sequences.
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