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A009153 formatted as a simple table:

n a(n)
0 1
1 0
2 1
3 6
4 29
5 140
6 757
7 4858
8 36409
9 302520
10 2681769
11 25018510
12 245905365
13 2559272196
14 28264854685
15 330408571202
16 4065526003313
17 52349977261040
18 702393407898705
19 9795673312888214
20 141820637175889805

[1,0,1,6,29,140,757,4858,36409,302520,2681769,
 25018510,245905365,2559272196,28264854685,
 330408571202,4065526003313,52349977261040,
 702393407898705,9795673312888214,
 141820637175889805]

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.


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