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A002981 as a simple table

n a(n)
1 0
2 1
3 2
4 3
5 11
6 27
7 37
8 41
9 73
10 77
11 116
12 154
13 320
14 340
15 399
16 427
17 872
18 1477
19 6380
20 26951
21 110059
22 150209 

[0,1,2,3,11,27,37,41,73,77,116,154,320,340,399,
 427,872,1477,6380,26951,110059,150209]

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Last modified June 28 20:31 EDT 2017. Contains 288840 sequences.