A333463 - cp's OEIS frontend

A333463 a(n) = Sum_{k=1..n} floor(n/k) * gcd(n,k).

n	a(n)
1	1
2	4
3	7
4	13
5	14
6	27
7	22
8	38
9	39
10	53
11	39
12	85
13	49
14	81
15	93
16	106
17	68
18	143
19	78
20	165
21	144
22	143
23	98
24	243
25	147
26	176
27	189
28	252
29	131
30	338
31	143
32	281
33	251
34	243
35	279
36	440
37	178
38	278
39	308
40	470
41	200
42	514
43	212
44	438
45	488
46	350
47	234
48	660
49	339
50	522
51	427
52	538
53	271
54	670
55	487
56	714
57	489
58	462
59	307
60	1028

[1, 4, 7, 13, 14, 27, 22, 38, 39, 53, 39, 85, 49, 81, 93, 106, 68, 143, 78, 165, 144, 143, 98, 243, 147, 176, 189, 252, 131, 338, 143, 281, 251, 243, 279, 440, 178, 278, 308, 470, 200, 514, 212, 438, 488, 350, 234, 660, 339, 522, 427, 538, 271, 670, 487, 714, 489, 462, 307, 1028]

cp's OEIS Frontend

A333463 a(n) = Sum_{k=1..n} floor(n/k) * gcd(n,k).

Table of values

List of values