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A181120 as a simple table

n a(n)
0 0
1 0
2 0
3 1
4 2
5 4
6 7
7 11
8 16
9 23
10 31
11 41
12 53
13 67
14 83
15 102
16 123
17 147
18 174
19 204
20 237
21 274
22 314
23 358
24 406
25 458
26 514
27 575
28 640
29 710
30 785
31 865
32 950
33 1041
34 1137
35 1239
36 1347
37 1461
38 1581
39 1708
40 1841
41 1981
42 2128
43 2282
44 2443
45 2612
46 2788
47 2972
48 3164
49 3364
50 3572

[0,0,0,1,2,4,7,11,16,23,31,41,53,67,83,102,123,
 147,174,204,237,274,314,358,406,458,514,575,640,
 710,785,865,950,1041,1137,1239,1347,1461,1581,
 1708,1841,1981,2128,2282,2443,2612,2788,2972,3164,
 3364,3572]

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Last modified October 22 21:52 EDT 2014. Contains 248411 sequences.