A291932 - cp's OEIS frontend

A291932 a(n) is the smallest k such that (n+1)phi(k) = (n-1)psi(k).

n	a(n)
2	2
3	3
4	95
5	5
6	143
7	7
8	319
9	323
10	559
11	11
12	117317
13	13
14	1007
15	899
16	1919
17	17
18	201983
19	19
20	441283
21	1763
22	394697
23	23
24	4031
25	5249
26	2911
27	3239
28	23519
29	29
30	3599
31	31
32	1796647
33	979801
34	8159
35	5459
36	5183
37	37
38	1550047
39	10763
40	8639
41	41
42	2709037
43	43
44	10207
45	9179
46	101567
47	47
48	12218993
49	9701
50	13199
51	10403
52	4018073
53	53

[2, 3, 95, 5, 143, 7, 319, 323, 559, 11, 117317, 13, 1007, 899, 1919, 17, 201983, 19, 441283, 1763, 394697, 23, 4031, 5249, 2911, 3239, 23519, 29, 3599, 31, 1796647, 979801, 8159, 5459, 5183, 37, 1550047, 10763, 8639, 41, 2709037, 43, 10207, 9179, 101567, 47, 12218993, 9701, 13199, 10403, 4018073, 53]

cp's OEIS Frontend

A291932 a(n) is the smallest k such that (n+1)phi(k) = (n-1)psi(k).

Table of values

List of values

cp's OEIS Frontend

A291932 a(n) is the smallest k such that (n+1)*phi(k) = (n-1)*psi(k).

Table of values

List of values

A291932 a(n) is the smallest k such that (n+1)phi(k) = (n-1)psi(k).