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A147087 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 3
10 5
11 9
12 15
13 27
14 43
15 124
16 355
17 1029
18 2971
19 10017
20 31249
21 124044
22 490643
23 2352059
24 10915093
25 60936189
26 323565841
27 2097402227

[1,1,1,1,1,1,1,1,3,5,9,15,27,43,124,355,1029,2971,
 10017,31249,124044,490643,2352059,10915093,
 60936189,323565841,2097402227]

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Last modified December 19 21:04 EST 2009. Contains 171054 sequences.


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