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A002185 formatted as a simple table:

n a(n)
0 3
1 1
2 11
3 43
4 19
5 683
6 2731
7 331
8 43691
9 174763
10 5419
11 2796203
12 251
13 87211
14 59
15 715827883
16 67
17 281
18 1777
19 22366891
20 83
21 2932031007403
22 18837001
23 283
24 4363953127297 

[3,1,11,43,19,683,2731,331,43691,174763,5419,
 2796203,251,87211,59,715827883,67,281,1777,
 22366891,83,2932031007403,18837001,283,
 4363953127297]

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Last modified December 17 19:39 EST 2009. Contains 170821 sequences.

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