A277330 - cp's OEIS frontend

A277330 a(0)=1, a(1)=2, a(2n) = A003961(a(n)), a(2n+1) = lcm(a(n),a(n+1))/gcd(a(n),a(n+1)).

n	a(n)
0	1
1	2
2	3
3	6
4	5
5	2
6	15
7	30
8	7
9	10
10	3
11	30
12	35
13	2
14	105
15	210
16	11
17	70
18	21
19	30
20	5
21	10
22	105
23	42
24	77
25	70
26	3
27	210
28	385
29	2
30	1155
31	2310
32	13
33	770
34	231
35	30
36	55
37	70
38	105
39	6
40	7
41	2
42	21
43	42
44	385
45	10
46	165
47	66
48	143
49	110
50	231
51	210
52	5
53	70
54	1155
55	66
56	1001
57	770
58	3
59	2310
60	5005
61	2
62	15015
63	30030
64	17
65	10010
66	3003
67	30
68	715
69	770
70	105
71	66
72	91
73	154
74	231
75	6
76	385
77	70
78	15
79	42
80	11
81	14
82	3
83	42
84	55
85	2

[1, 2, 3, 6, 5, 2, 15, 30, 7, 10, 3, 30, 35, 2, 105, 210, 11, 70, 21, 30, 5, 10, 105, 42, 77, 70, 3, 210, 385, 2, 1155, 2310, 13, 770, 231, 30, 55, 70, 105, 6, 7, 2, 21, 42, 385, 10, 165, 66, 143, 110, 231, 210, 5, 70, 1155, 66, 1001, 770, 3, 2310, 5005, 2, 15015, 30030, 17, 10010, 3003, 30, 715, 770, 105, 66, 91, 154, 231, 6, 385, 70, 15, 42, 11, 14, 3, 42, 55, 2]

cp's OEIS Frontend

A277330 a(0)=1, a(1)=2, a(2n) = A003961(a(n)), a(2n+1) = lcm(a(n),a(n+1))/gcd(a(n),a(n+1)).

Table of values

List of values