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A076064 as a simple table

n a(n)
1 4
2 1
3 2
4 6
5 9
6 14
7 21
8 28
9 36
10 44
11 55
12 66
13 78
14 90
15 105
16 119
17 135
18 152
19 171
20 190
21 210
22 231
23 253
24 276
25 300
26 325
27 351
28 378
29 406
30 435
31 464
32 496
33 528
34 560
35 595
36 630
37 666
38 703
39 741
40 780
41 820
42 861
43 902
44 945
45 990
46 1035
47 1080
48 1128
49 1175
50 1225
51 1275
52 1326
53 1378
54 1431

[4,1,2,6,9,14,21,28,36,44,55,66,78,90,105,119,135,
 152,171,190,210,231,253,276,300,325,351,378,406,
 435,464,496,528,560,595,630,666,703,741,780,820,
 861,902,945,990,1035,1080,1128,1175,1225,1275,
 1326,1378,1431]

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Last modified October 27 23:26 EDT 2020. Contains 338047 sequences. (Running on oeis4.)