A362864 - cp's OEIS frontend

A362864 Numbers k that divide Sum_{i=1..k} (i - d(i)), where d(n) is the number of divisors of n (A000005).

n	a(n)
1	1
2	2
3	5
4	8
5	15
6	24
7	26
8	47
9	121
10	204
11	347
12	562
13	4204
14	6937
15	6947
16	31108
17	379097
18	379131
19	379133
20	2801205
21	12554202
22	20698345
23	56264197
24	13767391064
25	37423648626
26	37423648726
27	61701166395
28	276525443156
29	276525443176
30	455913379395
31	455913379831
32	751674084802

[1, 2, 5, 8, 15, 24, 26, 47, 121, 204, 347, 562, 4204, 6937, 6947, 31108, 379097, 379131, 379133, 2801205, 12554202, 20698345, 56264197, 13767391064, 37423648626, 37423648726, 61701166395, 276525443156, 276525443176, 455913379395, 455913379831, 751674084802]

cp's OEIS Frontend

A362864 Numbers k that divide Sum_{i=1..k} (i - d(i)), where d(n) is the number of divisors of n (A000005).

Table of values

List of values