A147050
formatted as a simple table:
n
a(n)
1
1
2
1
3
1
4
1
5
1
6
5
7
17
8
45
9
201
10
861
11
4033
12
28285
13
222873
14
2292605
15
26123281
16
391420701
17
6423928729
[1,1,1,1,1,5,17,45,201,861,4033,28285,222873, 2292605,26123281,391420701,6423928729]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 5 08:23 EST 2009. Contains 170348 sequences.
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