A055517 - cp's OEIS frontend

A055517 Largest integer k such that k | Phi(k) - d(k) + n, or 0 if no such k exists, where d() is the number of divisors.

n	a(n)
0	30
1	4
2	12
3	0
4	1
5	4
6	9
7	2
8	25
9	4
10	49
11	15
12	14
13	27
14	121
15	35
16	169
17	33
18	26
19	55
20	289
21	77
22	361
23	91
24	38
25	85
26	529
27	143
28	46
29	133
30	44
31	187
32	841
33	221
34	961
35	247
36	62
37	253
38	42
39	323
40	1369
41	217
42	74
43	391
44	1681
45	437
46	1849
47	403
48	86
49	493
50	2209

[30, 4, 12, 0, 1, 4, 9, 2, 25, 4, 49, 15, 14, 27, 121, 35, 169, 33, 26, 55, 289, 77, 361, 91, 38, 85, 529, 143, 46, 133, 44, 187, 841, 221, 961, 247, 62, 253, 42, 323, 1369, 217, 74, 391, 1681, 437, 1849, 403, 86, 493, 2209]

cp's OEIS Frontend

A055517 Largest integer k such that k | Phi(k) - d(k) + n, or 0 if no such k exists, where d() is the number of divisors.

Table of values

List of values