A002404
formatted as a simple table:
n
a(n)
0
3
1
16
2
111
3
2548
4
14385
5
672360
6
10351845
7
270594968
8
2631486186
9
310710613080
[3,16,111,2548,14385,672360,10351845,270594968, 2631486186,310710613080]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 16 17:18 EST 2009. Contains 170825 sequences.
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