A228274 - cp's OEIS frontend

A228274 a(n) = Sum_{d|n, n/d odd} n * d.

n	a(n)
1	1
2	4
3	12
4	16
5	30
6	48
7	56
8	64
9	117
10	120
11	132
12	192
13	182
14	224
15	360
16	256
17	306
18	468
19	380
20	480
21	672
22	528
23	552
24	768
25	775
26	728
27	1080
28	896
29	870
30	1440
31	992
32	1024
33	1584
34	1224
35	1680
36	1872
37	1406
38	1520
39	2184
40	1920
41	1722
42	2688
43	1892
44	2112
45	3510
46	2208
47	2256
48	3072
49	2793
50	3100

[1, 4, 12, 16, 30, 48, 56, 64, 117, 120, 132, 192, 182, 224, 360, 256, 306, 468, 380, 480, 672, 528, 552, 768, 775, 728, 1080, 896, 870, 1440, 992, 1024, 1584, 1224, 1680, 1872, 1406, 1520, 2184, 1920, 1722, 2688, 1892, 2112, 3510, 2208, 2256, 3072, 2793, 3100]

cp's OEIS Frontend

A228274 a(n) = Sum_{d|n, n/d odd} n * d.

Table of values

List of values