A174936 - cp's OEIS frontend

A174936 a(n) = Sum_{d|n} A007955(d) * A007955(n/d), where A007955(m) = product of divisors of m.

n	a(n)
1	1
2	4
3	6
4	20
5	10
6	84
7	14
8	160
9	63
10	220
11	22
12	3648
13	26
14	420
15	480
16	2368
17	34
18	11988
19	38
20	16480
21	924
22	1012
23	46
24	671424
25	275
26	1404
27	1620
28	44800
29	58
30	1621860
31	62
32	70656
33	2244
34	2380
35	2520
36	20190816
37	74
38	2964
39	3120
40	5154240
41	82
42	6226836
43	86
44	172480
45	183870
46	4324
47	94
48	510973440
49	735
50	251500

[1, 4, 6, 20, 10, 84, 14, 160, 63, 220, 22, 3648, 26, 420, 480, 2368, 34, 11988, 38, 16480, 924, 1012, 46, 671424, 275, 1404, 1620, 44800, 58, 1621860, 62, 70656, 2244, 2380, 2520, 20190816, 74, 2964, 3120, 5154240, 82, 6226836, 86, 172480, 183870, 4324, 94, 510973440, 735, 251500]

cp's OEIS Frontend

A174936 a(n) = Sum_{d|n} A007955(d) * A007955(n/d), where A007955(m) = product of divisors of m.

Table of values

List of values