A147145
formatted as a simple table:
n
a(n)
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
13
10
25
11
51
12
161
13
489
14
1381
15
4593
16
16307
17
70385
[1,1,1,1,1,1,1,1,13,25,51,161,489,1381,4593,16307, 70385]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 4 08:07 EST 2009. Contains 170310 sequences.
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