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A048744 formatted as a simple table:

n a(n)
1 2
2 3
3 9
4 13
5 19
6 21
7 55
8 261
9 3415
10 4185
11 7353
12 12213
13 44169
14 60975
15 61011
16 108049
17 182451
18 228271
19 481801
20 500899
21 505431 

[2,3,9,13,19,21,55,261,3415,4185,7353,12213,44169,
 60975,61011,108049,182451,228271,481801,500899,
 505431]

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

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