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A007997 as a simple table

n a(n)
3 0
4 0
5 1
6 1
7 2
8 4
9 5
10 7
11 10
12 12
13 15
14 19
15 22
16 26
17 31
18 35
19 40
20 46
21 51
22 57
23 64
24 70
25 77
26 85
27 92
28 100
29 109
30 117
31 126
32 136
33 145
34 155
35 166
36 176
37 187
38 199
39 210
40 222
41 235
42 247
43 260
44 274
45 287
46 301
47 316
48 330
49 345
50 361
51 376
52 392
53 409
54 425
55 442
56 460
57 477
58 495
59 514
60 532
61 551
62 571
63 590
64 610

[0,0,1,1,2,4,5,7,10,12,15,19,22,26,31,35,40,46,51,
 57,64,70,77,85,92,100,109,117,126,136,145,155,166,
 176,187,199,210,222,235,247,260,274,287,301,316,
 330,345,361,376,392,409,425,442,460,477,495,514,
 532,551,571,590,610]

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Last modified April 16 04:38 EDT 2024. Contains 371696 sequences. (Running on oeis4.)