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A194209 as a simple table

n a(n)
1 0
2 0
3 1
4 2
5 4
6 6
7 9
8 13
9 17
10 22
11 27
12 33
13 39
14 46
15 54
16 62
17 71
18 80
19 90
20 100
21 111
22 123
23 135
24 148
25 161
26 175
27 189
28 204
29 220
30 236
31 253
32 270
33 288
34 306
35 325
36 345
37 365
38 385
39 406
40 428
41 450
42 473
43 496
44 520
45 544
46 569
47 594
48 620
49 647
50 674
51 701
52 729
53 757
54 786
55 816
56 846

[0,0,1,2,4,6,9,13,17,22,27,33,39,46,54,62,71,80,
 90,100,111,123,135,148,161,175,189,204,220,236,
 253,270,288,306,325,345,365,385,406,428,450,473,
 496,520,544,569,594,620,647,674,701,729,757,786,
 816,846]

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Last modified April 25 16:45 EDT 2024. Contains 371989 sequences. (Running on oeis4.)