A066812 - cp's OEIS frontend

A066812 Numbers k such that phi(k+1) = phi(k-1).

n	a(n)
1	5
2	8
3	9
4	11
5	27
6	33
7	71
8	75
9	123
10	147
11	309
12	315
13	387
14	513
15	555
16	573
17	627
18	636
19	729
20	795
21	843
22	911
23	915
24	1016
25	1083
26	1227
27	1323
28	1331
29	1347
30	1467
31	1515
32	1609
33	1755
34	1995
35	2133
36	2171
37	2187
38	2307
39	2403
40	2427
41	2475
42	2591
43	2643
44	2696
45	2763
46	2907
47	3243
48	3315

[5, 8, 9, 11, 27, 33, 71, 75, 123, 147, 309, 315, 387, 513, 555, 573, 627, 636, 729, 795, 843, 911, 915, 1016, 1083, 1227, 1323, 1331, 1347, 1467, 1515, 1609, 1755, 1995, 2133, 2171, 2187, 2307, 2403, 2427, 2475, 2591, 2643, 2696, 2763, 2907, 3243, 3315]

cp's OEIS Frontend

A066812 Numbers k such that phi(k+1) = phi(k-1).

Table of values

List of values