A064950 - cp's OEIS frontend

A064950 a(n) = Sum_{i|n, j|n} lcm(i,j).

n	a(n)
1	1
2	7
3	10
4	27
5	16
6	70
7	22
8	83
9	55
10	112
11	34
12	270
13	40
14	154
15	160
16	227
17	52
18	385
19	58
20	432
21	220
22	238
23	70
24	830
25	141
26	280
27	244
28	594
29	88
30	1120
31	94
32	579
33	340
34	364
35	352
36	1485
37	112
38	406
39	400
40	1328
41	124
42	1540
43	130
44	918
45	880
46	490
47	142
48	2270
49	267
50	987
51	520
52	1080
53	160
54	1708

[1, 7, 10, 27, 16, 70, 22, 83, 55, 112, 34, 270, 40, 154, 160, 227, 52, 385, 58, 432, 220, 238, 70, 830, 141, 280, 244, 594, 88, 1120, 94, 579, 340, 364, 352, 1485, 112, 406, 400, 1328, 124, 1540, 130, 918, 880, 490, 142, 2270, 267, 987, 520, 1080, 160, 1708]

cp's OEIS Frontend

A064950 a(n) = Sum_{i|n, j|n} lcm(i,j).

Table of values

List of values