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A211538 as a simple table

n a(n)
1 0
2 0
3 0
4 1
5 3
6 5
7 9
8 12
9 18
10 22
11 30
12 35
13 45
14 51
15 63
16 70
17 84
18 92
19 108
20 117
21 135
22 145
23 165
24 176
25 198
26 210
27 234
28 247
29 273
30 287
31 315
32 330
33 360
34 376
35 408
36 425
37 459
38 477
39 513
40 532
41 570
42 590
43 630
44 651
45 693
46 715
47 759
48 782
49 828
50 852
51 900
52 925
53 975
54 1001
55 1053
56 1080
57 1134
58 1162

[0,0,0,1,3,5,9,12,18,22,30,35,45,51,63,70,84,92,
 108,117,135,145,165,176,198,210,234,247,273,287,
 315,330,360,376,408,425,459,477,513,532,570,590,
 630,651,693,715,759,782,828,852,900,925,975,1001,
 1053,1080,1134,1162]

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Last modified April 25 05:18 EDT 2024. Contains 371964 sequences. (Running on oeis4.)