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A075873 formatted as a simple table:

n a(n)
1 0
2 1
3 2
4 9
5 40
6 77
7 342
8 1519
9 2924
10 12987
11 57682
12 111035
13 493164
14 2190397
15 4216406
16 18727245
17 83177404
18 160112393
19 711142146
20 3158550955
21 6080054528
22 27004674303
23 119941758886
24 230881959671
25 1025466481368
26 4554628286713

[0,1,2,9,40,77,342,1519,2924,12987,57682,111035,
 493164,2190397,4216406,18727245,83177404,
 160112393,711142146,3158550955,6080054528,
 27004674303,119941758886,230881959671,
 1025466481368,4554628286713]

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Last modified December 16 13:01 EST 2009. Contains 170825 sequences.


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