A066605 - cp's OEIS frontend

A066605 Numbers k such that phi(k)/lambda(k) increases to a record value, where phi(k) is the Euler totient function (A000010) and lambda(k) is the Carmichael lambda function (A002322).

n	a(n)
1	1
2	8
3	24
4	63
5	80
6	240
7	455
8	819
9	1365
10	2387
11	2720
12	3276
13	3591
14	4095
15	7280
16	9139
17	13104
18	18981
19	21483
20	21840
21	24605
22	32760
23	44289
24	45695
25	63973
26	122915
27	132867
28	172081
29	191919
30	246753
31	319865
32	520025
33	575757
34	860405
35	959595
36	1233765

[1, 8, 24, 63, 80, 240, 455, 819, 1365, 2387, 2720, 3276, 3591, 4095, 7280, 9139, 13104, 18981, 21483, 21840, 24605, 32760, 44289, 45695, 63973, 122915, 132867, 172081, 191919, 246753, 319865, 520025, 575757, 860405, 959595, 1233765]

cp's OEIS Frontend

A066605 Numbers k such that phi(k)/lambda(k) increases to a record value, where phi(k) is the Euler totient function (A000010) and lambda(k) is the Carmichael lambda function (A002322).

Table of values

List of values