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A083751 as a simple table

n a(n)
1 0
2 0
3 0
4 1
5 1
6 3
7 3
8 6
9 7
10 11
11 13
12 20
13 23
14 33
15 40
16 54
17 65
18 87
19 104
20 136
21 164
22 209
23 252
24 319
25 382
26 477
27 573
28 707
29 846
30 1038
31 1237
32 1506
33 1793
34 2166
35 2572
36 3093
37 3659
38 4377
39 5169
40 6152
41 7244
42 8590
43 10086
44 11913
45 13958
46 16423
47 19195
48 22518
49 26251
50 30700
51 35716

[0,0,0,1,1,3,3,6,7,11,13,20,23,33,40,54,65,87,104,
 136,164,209,252,319,382,477,573,707,846,1038,1237,
 1506,1793,2166,2572,3093,3659,4377,5169,6152,7244,
 8590,10086,11913,13958,16423,19195,22518,26251,
 30700,35716]

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Last modified March 29 10:22 EDT 2024. Contains 371268 sequences. (Running on oeis4.)