A147397
formatted as a simple table:
n
a(n)
1
1
2
1
3
1
4
5
5
17
6
45
7
217
8
1729
9
28581
10
422837
11
7769557
12
212491441
13
9353130173
14
579241228119
[1,1,1,5,17,45,217,1729,28581,422837,7769557, 212491441,9353130173,579241228119]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 20 00:58 EST 2009. Contains 171054 sequences.
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