A351871 - cp's OEIS frontend

A351871 a(1) = 1, a(2) = 2; a(n) = gcd(a(n-1), a(n-2)) + (a(n-1) + a(n-2))/gcd(a(n-1), a(n-2)).

n	a(n)
1	1
2	2
3	4
4	5
5	10
6	8
7	11
8	20
9	32
10	17
11	50
12	68
13	61
14	130
15	192
16	163
17	356
18	520
19	223
20	744
21	968
22	222
23	597
24	276
25	294
26	101
27	396
28	498
29	155
30	654
31	810
32	250
33	116
34	185
35	302
36	488
37	397
38	886
39	1284
40	1087
41	2372
42	3460
43	1462
44	2463
45	3926
46	6390
47	5160
48	415
49	1120
50	312
51	187
52	500
53	688
54	301
55	66
56	368
57	219
58	588
59	272
60	219
61	492
62	240
63	73
64	314
65	388

[1, 2, 4, 5, 10, 8, 11, 20, 32, 17, 50, 68, 61, 130, 192, 163, 356, 520, 223, 744, 968, 222, 597, 276, 294, 101, 396, 498, 155, 654, 810, 250, 116, 185, 302, 488, 397, 886, 1284, 1087, 2372, 3460, 1462, 2463, 3926, 6390, 5160, 415, 1120, 312, 187, 500, 688, 301, 66, 368, 219, 588, 272, 219, 492, 240, 73, 314, 388]

cp's OEIS Frontend

A351871 a(1) = 1, a(2) = 2; a(n) = gcd(a(n-1), a(n-2)) + (a(n-1) + a(n-2))/gcd(a(n-1), a(n-2)).

Table of values

List of values