A002463
formatted as a simple table:
n
a(n)
0
1
1
3
2
30
3
175
4
4410
5
29106
6
396396
7
2760615
8
156434850
[1,3,30,175,4410,29106,396396,2760615,156434850]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 10 00:48 EST 2009. Contains 170565 sequences.
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