A200723 - cp's OEIS frontend

A200723 The sum of integers k from 1 to n such that the greatest common unitary divisor of k and n is 1.

n	a(n)
1	1
2	1
3	3
4	6
5	10
6	10
7	21
8	28
9	36
10	32
11	55
12	53
13	78
14	66
15	69
16	120
17	136
18	112
19	171
20	144
21	153
22	170
23	253
24	211
25	300
26	240
27	351
28	300
29	406
30	237
31	465
32	496
33	384
34	416
35	445
36	539
37	666
38	522
39	558
40	633
41	820
42	444
43	903
44	780
45	772
46	770
47	1081
48	887
49	1176
50	912
51	951
52	1104

[1, 1, 3, 6, 10, 10, 21, 28, 36, 32, 55, 53, 78, 66, 69, 120, 136, 112, 171, 144, 153, 170, 253, 211, 300, 240, 351, 300, 406, 237, 465, 496, 384, 416, 445, 539, 666, 522, 558, 633, 820, 444, 903, 780, 772, 770, 1081, 887, 1176, 912, 951, 1104]

cp's OEIS Frontend

A200723 The sum of integers k from 1 to n such that the greatest common unitary divisor of k and n is 1.

Table of values

List of values