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A090476 formatted as a simple table:

n a(n)
1 2
2 3
3 19
4 23
5 281
6 983
7 2621
8 3931
9 62903
10 212297
11 1698377
12 7925759
13 99071989
14 435916751
15 5448959389
16 17981565983
17 1390574436037
18 7072749286739
19 50923794864521
20 178233282025823
21 2851732512413171
22 30893768884476019

[2,3,19,23,281,983,2621,3931,62903,212297,1698377,
 7925759,99071989,435916751,5448959389,17981565983,
 1390574436037,7072749286739,50923794864521,
 178233282025823,2851732512413171,
 30893768884476019]

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.


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