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A143289 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 0
10 0
11 1
12 2
13 3
14 4
15 5
16 6
17 7
18 8
19 9
20 10
21 12
22 16
23 22
24 30
25 40
26 52
27 66
28 82
29 100
30 120
31 143
32 171
33 207
34 254
35 315
36 393
37 491
38 612
39 759
40 935
41 1144
42 1392
43 1688
44 2045
45 2480
46 3014
47 3672
48 4483
49 5480
50 6700
51 8185
52 9984
53 12156
54 14774
55 17930
56 21740
57 26349
58 31936

[0,0,0,0,0,0,0,0,0,0,0,1,2,3,4,5,6,7,8,9,10,12,16,
 22,30,40,52,66,82,100,120,143,171,207,254,315,393,
 491,612,759,935,1144,1392,1688,2045,2480,3014,
 3672,4483,5480,6700,8185,9984,12156,14774,17930,
 21740,26349,31936]

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.


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