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A143404 formatted as a simple table:

n a(n)
0 0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 1
10 135
11 10065
12 547965
13 24336312
14 934863930
15 32189799070
16 1017281878470
17 30001945084683
18 835898091070185
19 22206607023852615
20 566594907018764715
21 13964270139973201114
22 333991935681805199700

[0,0,0,0,0,0,0,0,0,1,135,10065,547965,24336312,
 934863930,32189799070,1017281878470,
 30001945084683,835898091070185,22206607023852615,
 566594907018764715,13964270139973201114,
 333991935681805199700]

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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