A070017 - cp's OEIS frontend

A070017 Least numbers m such that GCD of two consecutive values of cototients, i.e., gcd(cototient(m+1), cototient(m)) equals 2n - 1.

n	a(n)
1	2
2	9
3	38
4	392
5	135
6	120
7	362
8	116
9	745
10	1183
11	294
12	528
13	1395
14	428
15	1378
16	2602
17	1185
18	203
19	2313
20	3042
21	1966
22	3549
23	1431
24	551
25	7838
26	4076
27	473
28	2635
29	903
30	2044
31	13178
32	942
33	6819
34	12418
35	1188
36	2264
37	3282
38	1775
39	1517
40	2127
41	24380
42	2884
43	2035
44	11481

[2, 9, 38, 392, 135, 120, 362, 116, 745, 1183, 294, 528, 1395, 428, 1378, 2602, 1185, 203, 2313, 3042, 1966, 3549, 1431, 551, 7838, 4076, 473, 2635, 903, 2044, 13178, 942, 6819, 12418, 1188, 2264, 3282, 1775, 1517, 2127, 24380, 2884, 2035, 11481]

cp's OEIS Frontend

A070017 Least numbers m such that GCD of two consecutive values of cototients, i.e., gcd(cototient(m+1), cototient(m)) equals 2n - 1.

Table of values

List of values