A330806 - cp's OEIS frontend

A330806 a(1) = 1; a(2) = 1; for n >= 3, a(n) = a(n-1) / gcd(a(n-1), n-1) + a(n-2) / gcd(a(n-2), n-2).

n	a(n)
1	1
2	1
3	2
4	3
5	5
6	4
7	3
8	5
9	8
10	13
11	21
12	34
13	38
14	55
15	93
16	86
17	74
18	117
19	87
20	100
21	92
22	97
23	189
24	286
25	332
26	475
27	807
28	744
29	455
30	641
31	1096
32	1737
33	2833
34	4570
35	5118
36	7403
37	12521
38	19924
39	22483
40	32445
41	28972
42	35461
43	64433
44	99894
45	114380
46	72823
47	95699
48	168522
49	123786
50	151873

[1, 1, 2, 3, 5, 4, 3, 5, 8, 13, 21, 34, 38, 55, 93, 86, 74, 117, 87, 100, 92, 97, 189, 286, 332, 475, 807, 744, 455, 641, 1096, 1737, 2833, 4570, 5118, 7403, 12521, 19924, 22483, 32445, 28972, 35461, 64433, 99894, 114380, 72823, 95699, 168522, 123786, 151873]

cp's OEIS Frontend

A330806 a(1) = 1; a(2) = 1; for n >= 3, a(n) = a(n-1) / gcd(a(n-1), n-1) + a(n-2) / gcd(a(n-2), n-2).

Table of values

List of values