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A087460 formatted as a simple table:

n a(n)
2 2
3 3
4 4
5 10
6 11
7 30
8 83
9 226
10 4549
11 91379
12 91380
13 248396
14 248397
15 675213
16 4989190
17 4989191
18 13562026
19 13562027
20 36865412
21 2012783315

[2,3,4,10,11,30,83,226,4549,91379,91380,248396,
 248397,675213,4989190,4989191,13562026,13562027,
 36865412,2012783315]

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.


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