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A002418 formatted as a simple table:

n a(n)
0 0
1 1
2 9
3 35
4 95
5 210
6 406
7 714
8 1170
9 1815
10 2695
11 3861
12 5369
13 7280
14 9660
15 12580
16 16116
17 20349
18 25365
19 31255
20 38115
21 46046
22 55154
23 65550
24 77350
25 90675
26 105651
27 122409
28 141085
29 161820
30 184760
31 210056
32 237864
33 268345
34 301665
35 337995

[0,1,9,35,95,210,406,714,1170,1815,2695,3861,5369,
 7280,9660,12580,16116,20349,25365,31255,38115,
 46046,55154,65550,77350,90675,105651,122409,
 141085,161820,184760,210056,237864,268345,301665,
 337995]

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


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