A284521 - OEIS

A284521 as a simple table

n	a(n)
1	1
2	3
3	6
4	10
5	15
6	18
7	25
8	33
9	42
10	47
11	58
12	62
13	75
14	82
15	87
16	103
17	120
18	129
19	148
20	153
21	160
22	171
23	194
24	202
25	227
26	240
27	267
28	274
29	303
30	308
31	339
32	371
33	382
34	399
35	406
36	415
37	452
38	471
39	484
40	492
41	533
42	540
43	583
44	594
45	603
46	626
47	673
48	689
49	738
50	763
51	780
52	793
53	846
54	873
55	884
56	892
57	911
58	940
59	999
60	1004
61	1065
62	1096
63	1105
64	1169
65	1182

[1,3,6,10,15,18,25,33,42,47,58,62,75,82,87,103, 120,129,148,153,160,171,194,202,227,240,267,274, 303,308,339,371,382,399,406,415,452,471,484,492, 533,540,583,594,603,626,673,689,738,763,780,793, 846,873,884,892,911,940,999,1004,1065,1096,1105, 1169,1182]