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A139766 formatted as a simple table:

n a(n)
1 3
2 15
3 104
4 164
5 255
6 2625
7 2834
8 11715
9 18315
10 48704
11 49215
12 64004
13 65535
14 73124
15 131144
16 215775
17 491535
18 525986
19 546272
20 568815
21 952575
22 1925564
23 5781434
24 5861583
25 13496384
26 14409548
27 17646615
28 17949434
29 20171384
30 21475124
31 22632285

[3,15,104,164,255,2625,2834,11715,18315,48704,
 49215,64004,65535,73124,131144,215775,491535,
 525986,546272,568815,952575,1925564,5781434,
 5861583,13496384,14409548,17646615,17949434,
 20171384,21475124,22632285]

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.


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