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A127940 formatted as a simple table:

n a(n)
1 1
2 1
3 1
4 2
5 3
6 8
7 22
8 71
9 93
10 638
11 9144
12 26821
13 2373690
14 11013191
15 950468551
16 23819080360
17 4860600739719
18 18887557655957
19 23748158395676
20 102452785866447
21 1153981434332852712
22 722919835385951370578

[1,1,1,2,3,8,22,71,93,638,9144,26821,2373690,
 11013191,950468551,23819080360,4860600739719,
 18887557655957,23748158395676,102452785866447,
 1153981434332852712,722919835385951370578]

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


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