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A143464 formatted as a simple table:

n a(n)
0 0
1 1
2 3
3 11
4 42
5 164
6 649
7 2591
8 10408
9 41998
10 170050
11 690370
12 2808714
13 11446642
14 46715469
15 190876527
16 780679200
17 3195628806
18 13090353594
19 53655587034
20 220045073988
21 902842397664
22 3705876933930
23 15216954519222
24 62503485455208

[0,1,3,11,42,164,649,2591,10408,41998,170050,
 690370,2808714,11446642,46715469,190876527,
 780679200,3195628806,13090353594,53655587034,
 220045073988,902842397664,3705876933930,
 15216954519222,62503485455208]

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Last modified December 6 22:55 EST 2009. Contains 170429 sequences.


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