A126881 - cp's OEIS frontend

A126881 a(1)=1, a(2)=2. a(n) is the a(n-1)th integer from among those positive integers coprime to a(n-2).

n	a(n)
1	1
2	2
3	2
4	3
5	5
6	7
7	8
8	9
9	17
10	25
11	26
12	32
13	69
14	137
15	214
16	215
17	433
18	553
19	554
20	654
21	1311
22	3967
23	6565
24	6566
25	8979
26	21267
27	33151
28	53216
29	53217
30	106497
31	161963
32	242965
33	244832
34	306046
35	714759
36	1579093
37	2396450
38	2420102
39	7278679
40	14557369
41	14778071

[1, 2, 2, 3, 5, 7, 8, 9, 17, 25, 26, 32, 69, 137, 214, 215, 433, 553, 554, 654, 1311, 3967, 6565, 6566, 8979, 21267, 33151, 53216, 53217, 106497, 161963, 242965, 244832, 306046, 714759, 1579093, 2396450, 2420102, 7278679, 14557369, 14778071]

cp's OEIS Frontend

A126881 a(1)=1, a(2)=2. a(n) is the a(n-1)th integer from among those positive integers coprime to a(n-2).

Table of values

List of values