A060779 - cp's OEIS frontend

A060779 a(n) = lcm(tau(n+1), tau(n)), where tau = A000005.

n	a(n)
1	2
2	2
3	6
4	6
5	4
6	4
7	4
8	12
9	12
10	4
11	6
12	6
13	4
14	4
15	20
16	10
17	6
18	6
19	6
20	12
21	4
22	4
23	8
24	24
25	12
26	4
27	12
28	6
29	8
30	8
31	6
32	12
33	4
34	4
35	36
36	18
37	4
38	4
39	8
40	8
41	8
42	8
43	6
44	6
45	12
46	4
47	10
48	30
49	6
50	12
51	12
52	6
53	8
54	8
55	8
56	8
57	4
58	4
59	12
60	12
61	4
62	12
63	42
64	28
65	8
66	8
67	6
68	12
69	8
70	8
71	12
72	12
73	4
74	12
75	6
76	12
77	8
78	8
79	10
80	10
81	20
82	4
83	12
84	12
85	4
86	4
87	8
88	8
89	12

[2, 2, 6, 6, 4, 4, 4, 12, 12, 4, 6, 6, 4, 4, 20, 10, 6, 6, 6, 12, 4, 4, 8, 24, 12, 4, 12, 6, 8, 8, 6, 12, 4, 4, 36, 18, 4, 4, 8, 8, 8, 8, 6, 6, 12, 4, 10, 30, 6, 12, 12, 6, 8, 8, 8, 8, 4, 4, 12, 12, 4, 12, 42, 28, 8, 8, 6, 12, 8, 8, 12, 12, 4, 12, 6, 12, 8, 8, 10, 10, 20, 4, 12, 12, 4, 4, 8, 8, 12]

cp's OEIS Frontend

A060779 a(n) = lcm(tau(n+1), tau(n)), where tau = A000005.

Table of values

List of values

n	a(n)
1	2
2	2
3	6
4	6
5	4
6	4
7	4
8	12
9	12
10	4
11	6
12	6
13	4
14	4
15	20
16	10
17	6
18	6
19	6
20	12
21	4
22	4
23	8
24	24
25	12
26	4
27	12
28	6
29	8
30	8
31	6
32	12
33	4
34	4
35	36
36	18
37	4
38	4
39	8
40	8
41	8
42	8
43	6
44	6
45	12
46	4
47	10
48	30
49	6
50	12
51	12
52	6
53	8
54	8
55	8
56	8
57	4
58	4
59	12
60	12
61	4
62	12
63	42
64	28
65	8
66	8
67	6
68	12
69	8
70	8
71	12
72	12
73	4
74	12
75	6
76	12
77	8
78	8
79	10
80	10
81	20
82	4
83	12
84	12
85	4
86	4
87	8
88	8
89	12

n	a(n)
1	2
2	2
3	6
4	6
5	4
6	4
7	4
8	12
9	12
10	4
11	6
12	6
13	4
14	4
15	20
16	10
17	6
18	6
19	6
20	12
21	4
22	4
23	8
24	24
25	12
26	4
27	12
28	6
29	8
30	8
31	6
32	12
33	4
34	4
35	36
36	18
37	4
38	4
39	8
40	8
41	8
42	8
43	6
44	6
45	12
46	4
47	10
48	30
49	6
50	12
51	12
52	6
53	8
54	8
55	8
56	8
57	4
58	4
59	12
60	12
61	4
62	12
63	42
64	28
65	8
66	8
67	6
68	12
69	8
70	8
71	12
72	12
73	4
74	12
75	6
76	12
77	8
78	8
79	10
80	10
81	20
82	4
83	12
84	12
85	4
86	4
87	8
88	8
89	12

n	a(n)
1	2
2	2
3	6
4	6
5	4
6	4
7	4
8	12
9	12
10	4
11	6
12	6
13	4
14	4
15	20
16	10
17	6
18	6
19	6
20	12
21	4
22	4
23	8
24	24
25	12
26	4
27	12
28	6
29	8
30	8
31	6
32	12
33	4
34	4
35	36
36	18
37	4
38	4
39	8
40	8
41	8
42	8
43	6
44	6
45	12
46	4
47	10
48	30
49	6
50	12
51	12
52	6
53	8
54	8
55	8
56	8
57	4
58	4
59	12
60	12
61	4
62	12
63	42
64	28
65	8
66	8
67	6
68	12
69	8
70	8
71	12
72	12
73	4
74	12
75	6
76	12
77	8
78	8
79	10
80	10
81	20
82	4
83	12
84	12
85	4
86	4
87	8
88	8
89	12