A341772 - cp's OEIS frontend

A341772 a(n) = Sum_{d|n} phi(d) * J_2(n/d).

n	a(n)
1	1
2	4
3	10
4	17
5	28
6	40
7	54
8	70
9	94
10	112
11	130
12	170
13	180
14	216
15	280
16	284
17	304
18	376
19	378
20	476
21	540
22	520
23	550
24	700
25	716
26	720
27	858
28	918
29	868
30	1120
31	990
32	1144
33	1300
34	1216
35	1512
36	1598
37	1404
38	1512
39	1800
40	1960
41	1720
42	2160
43	1890
44	2210
45	2632
46	2200
47	2254
48	2840
49	2682
50	2864
51	3040
52	3060
53	2860
54	3432
55	3640

[1, 4, 10, 17, 28, 40, 54, 70, 94, 112, 130, 170, 180, 216, 280, 284, 304, 376, 378, 476, 540, 520, 550, 700, 716, 720, 858, 918, 868, 1120, 990, 1144, 1300, 1216, 1512, 1598, 1404, 1512, 1800, 1960, 1720, 2160, 1890, 2210, 2632, 2200, 2254, 2840, 2682, 2864, 3040, 3060, 2860, 3432, 3640]

cp's OEIS Frontend

A341772 a(n) = Sum_{d|n} phi(d) * J_2(n/d).

Table of values

List of values