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A220838 as a simple table

n a(n)
1 -1
2 0
3 0
4 0
5 1
6 1
7 2
8 3
9 3
10 5
11 6
12 7
13 9
14 10
15 12
16 14
17 15
18 18
19 20
20 22
21 25
22 27
23 30
24 33
25 35
26 39
27 42
28 45
29 49
30 52
31 56
32 60
33 63
34 68
35 72
36 76
37 81
38 85
39 90
40 95
41 99
42 105
43 110
44 115
45 121
46 126
47 132
48 138
49 143
50 150
51 156
52 162
53 169
54 175
55 182
56 189
57 195
58 203
59 210
60 217
61 225
62 232

[-1,0,0,0,1,1,2,3,3,5,6,7,9,10,12,14,15,18,20,22,
 25,27,30,33,35,39,42,45,49,52,56,60,63,68,72,76,
 81,85,90,95,99,105,110,115,121,126,132,138,143,
 150,156,162,169,175,182,189,195,203,210,217,225,
 232]

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Last modified April 20 07:43 EDT 2024. Contains 371799 sequences. (Running on oeis4.)