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A035342 formatted as a simple table:

n a(n)
1 1
2 3
3 1
4 15
5 9
6 1
7 105
8 87
9 18
10 1
11 945
12 975
13 285
14 30
15 1
16 10395
17 12645
18 4680
19 705
20 45
21 1
22 135135
23 187425
24 82845
25 15960
26 1470
27 63
28 1
29 2027025
30 3133935
31 1595790
32 370125
33 43890
34 2730
35 84
36 1
37 34459425
38 58437855
39 33453945
40 8998290

[1,3,1,15,9,1,105,87,18,1,945,975,285,30,1,10395,
 12645,4680,705,45,1,135135,187425,82845,15960,
 1470,63,1,2027025,3133935,1595790,370125,43890,
 2730,84,1,34459425,58437855,33453945,8998290]

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.


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