A341638 - cp's OEIS frontend

A341638 a(n) = Sum_{d|n} phi(d) * sigma(d) * tau(n/d).

n	a(n)
1	1
2	5
3	10
4	23
5	26
6	50
7	50
8	101
9	97
10	130
11	122
12	230
13	170
14	250
15	260
16	427
17	290
18	485
19	362
20	598
21	500
22	610
23	530
24	1010
25	671
26	850
27	904
28	1150
29	842
30	1300
31	962
32	1761
33	1220
34	1450
35	1300
36	2231
37	1370
38	1810
39	1700
40	2626
41	1682
42	2500
43	1850
44	2806
45	2522
46	2650
47	2210
48	4270
49	2493
50	3355
51	2900
52	3910
53	2810
54	4520

[1, 5, 10, 23, 26, 50, 50, 101, 97, 130, 122, 230, 170, 250, 260, 427, 290, 485, 362, 598, 500, 610, 530, 1010, 671, 850, 904, 1150, 842, 1300, 962, 1761, 1220, 1450, 1300, 2231, 1370, 1810, 1700, 2626, 1682, 2500, 1850, 2806, 2522, 2650, 2210, 4270, 2493, 3355, 2900, 3910, 2810, 4520]

cp's OEIS Frontend

A341638 a(n) = Sum_{d|n} phi(d) * sigma(d) * tau(n/d).

Table of values

List of values