A326403 - cp's OEIS frontend

A326403 Numbers k such that iphi(k) = iphi(k+1), where iphi(k) is an infinitary analog to the Euler totient function (A091732).

n	a(n)
1	1
2	20
3	35
4	143
5	194
6	208
7	740
8	1220
9	1299
10	1419
11	1803
12	1892
13	3705
14	3716
15	3843
16	5186
17	5635
18	7868
19	10659
20	13634
21	13905
22	17948
23	18507
24	18914
25	18980
26	21007
27	25388
28	25545
29	30380
30	31599
31	32304
32	34595
33	37820
34	47067
35	70394
36	73059
37	78064
38	87856
39	94874
40	105908
41	116963

[1, 20, 35, 143, 194, 208, 740, 1220, 1299, 1419, 1803, 1892, 3705, 3716, 3843, 5186, 5635, 7868, 10659, 13634, 13905, 17948, 18507, 18914, 18980, 21007, 25388, 25545, 30380, 31599, 32304, 34595, 37820, 47067, 70394, 73059, 78064, 87856, 94874, 105908, 116963]

cp's OEIS Frontend

A326403 Numbers k such that iphi(k) = iphi(k+1), where iphi(k) is an infinitary analog to the Euler totient function (A091732).

Table of values

List of values