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A161243 as a simple table

n a(n)
1 0
2 0
3 0
4 1
5 1
6 1
7 1
8 2
9 1
10 2
11 1
12 4
13 2
14 4
15 4
16 6
17 5
18 8
19 7
20 10
21 9
22 12
23 11
24 16
25 14
26 18
27 18
28 23
29 23
30 29
31 28
32 34
33 34
34 41
35 41
36 51
37 49
38 58
39 59
40 70
41 69
42 83
43 81
44 95
45 96
46 110
47 110
48 130
49 127
50 147
51 147
52 169
53 168
54 196
55 195
56 221
57 224
58 253
59 254
60 291
61 289
62 326
63 330
64 370
65 374
66 420
67 423
68 471
69 480
70 531
71 537

[0,0,0,1,1,1,1,2,1,2,1,4,2,4,4,6,5,8,7,10,9,12,11,
 16,14,18,18,23,23,29,28,34,34,41,41,51,49,58,59,
 70,69,83,81,95,96,110,110,130,127,147,147,169,168,
 196,195,221,224,253,254,291,289,326,330,370,374,
 420,423,471,480,531,537]

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Last modified May 6 05:43 EDT 2024. Contains 372290 sequences. (Running on oeis4.)