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A001040 formatted as a simple table:

n a(n)
0 0
1 1
2 1
3 3
4 10
5 43
6 225
7 1393
8 9976
9 81201
10 740785
11 7489051
12 83120346
13 1004933203
14 13147251985
15 185066460993
16 2789144166880
17 44811373131073
18 764582487395121
19 13807296146243251
20 263103209266016890
21 5275871481466581051
22 111056404320064218961
23 2448516766522879398193

[0,1,1,3,10,43,225,1393,9976,81201,740785,7489051,
 83120346,1004933203,13147251985,185066460993,
 2789144166880,44811373131073,764582487395121,
 13807296146243251,263103209266016890,
 5275871481466581051,111056404320064218961,
 2448516766522879398193]

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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