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A026833 as a simple table

n a(n)
0 0
1 0
2 1
3 0
4 1
5 1
6 2
7 1
8 2
9 3
10 4
11 4
12 5
13 6
14 8
15 9
16 11
17 14
18 16
19 18
20 22
21 26
22 31
23 36
24 42
25 49
26 57
27 66
28 76
29 88
30 102
31 116
32 134
33 154
34 176
35 201
36 229
37 260
38 296
39 336
40 381
41 432
42 488
43 550
44 622
45 700
46 788
47 886
48 994
49 1115
50 1250
51 1399
52 1564
53 1748
54 1952
55 2176
56 2426
57 2701
58 3004

[0,0,1,0,1,1,2,1,2,3,4,4,5,6,8,9,11,14,16,18,22,
 26,31,36,42,49,57,66,76,88,102,116,134,154,176,
 201,229,260,296,336,381,432,488,550,622,700,788,
 886,994,1115,1250,1399,1564,1748,1952,2176,2426,
 2701,3004]

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Last modified April 28 13:13 EDT 2024. Contains 372086 sequences. (Running on oeis4.)