A347137 - cp's OEIS frontend

A347137 a(n) = Sum_{d|n} phi(d) * A003961(n/d), where A003961 shifts the prime factorization of its argument one step towards larger primes, and phi is Euler totient function.

n	a(n)
1	1
2	4
3	7
4	14
5	11
6	28
7	17
8	46
9	41
10	44
11	23
12	98
13	29
14	68
15	77
16	146
17	35
18	164
19	41
20	154
21	119
22	92
23	51
24	322
25	97
26	116
27	223
28	238
29	59
30	308
31	67
32	454
33	161
34	140
35	187
36	574
37	77
38	164
39	203
40	506
41	83
42	476
43	89
44	322
45	451
46	204
47	99
48	1022
49	229
50	388
51	245
52	406
53	111
54	892
55	253
56	782
57	287
58	236
59	119
60	1078
61	127
62	268
63	697
64	1394
65	319
66	644
67	137
68	490

[1, 4, 7, 14, 11, 28, 17, 46, 41, 44, 23, 98, 29, 68, 77, 146, 35, 164, 41, 154, 119, 92, 51, 322, 97, 116, 223, 238, 59, 308, 67, 454, 161, 140, 187, 574, 77, 164, 203, 506, 83, 476, 89, 322, 451, 204, 99, 1022, 229, 388, 245, 406, 111, 892, 253, 782, 287, 236, 119, 1078, 127, 268, 697, 1394, 319, 644, 137, 490]

cp's OEIS Frontend

A347137 a(n) = Sum_{d|n} phi(d) * A003961(n/d), where A003961 shifts the prime factorization of its argument one step towards larger primes, and phi is Euler totient function.

Table of values

List of values