A083549 - cp's OEIS frontend

A083549 Quotient if least common multiple (lcm) of cototient values of consecutive integers is divided by the greatest common divisor (gcd) of the same pair of consecutive numbers.

n	a(n)
1	0
2	1
3	2
4	2
5	4
6	4
7	4
8	12
9	2
10	6
11	8
12	8
13	8
14	56
15	56
16	8
17	12
18	12
19	12
20	12
21	12
22	12
23	16
24	80
25	70
26	126
27	144
28	16
29	22
30	22
31	16
32	208
33	234
34	198
35	264
36	24
37	20
38	12
39	40
40	24
41	30
42	30
43	24
44	56
45	56
46	24
47	32
48	224
49	210
50	570
51	532
52	28
53	36
54	60
55	480
56	672
57	70
58	30
59	44
60	44
61	32
62	864
63	864
64	544
65	782
66	46
67	36
68	900

[0, 1, 2, 2, 4, 4, 4, 12, 2, 6, 8, 8, 8, 56, 56, 8, 12, 12, 12, 12, 12, 12, 16, 80, 70, 126, 144, 16, 22, 22, 16, 208, 234, 198, 264, 24, 20, 12, 40, 24, 30, 30, 24, 56, 56, 24, 32, 224, 210, 570, 532, 28, 36, 60, 480, 672, 70, 30, 44, 44, 32, 864, 864, 544, 782, 46, 36, 900]

cp's OEIS Frontend

A083549 Quotient if least common multiple (lcm) of cototient values of consecutive integers is divided by the greatest common divisor (gcd) of the same pair of consecutive numbers.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	2
5	4
6	4
7	4
8	12
9	2
10	6
11	8
12	8
13	8
14	56
15	56
16	8
17	12
18	12
19	12
20	12
21	12
22	12
23	16
24	80
25	70
26	126
27	144
28	16
29	22
30	22
31	16
32	208
33	234
34	198
35	264
36	24
37	20
38	12
39	40
40	24
41	30
42	30
43	24
44	56
45	56
46	24
47	32
48	224
49	210
50	570
51	532
52	28
53	36
54	60
55	480
56	672
57	70
58	30
59	44
60	44
61	32
62	864
63	864
64	544
65	782
66	46
67	36
68	900

n	a(n)
1	0
2	1
3	2
4	2
5	4
6	4
7	4
8	12
9	2
10	6
11	8
12	8
13	8
14	56
15	56
16	8
17	12
18	12
19	12
20	12
21	12
22	12
23	16
24	80
25	70
26	126
27	144
28	16
29	22
30	22
31	16
32	208
33	234
34	198
35	264
36	24
37	20
38	12
39	40
40	24
41	30
42	30
43	24
44	56
45	56
46	24
47	32
48	224
49	210
50	570
51	532
52	28
53	36
54	60
55	480
56	672
57	70
58	30
59	44
60	44
61	32
62	864
63	864
64	544
65	782
66	46
67	36
68	900

n	a(n)
1	0
2	1
3	2
4	2
5	4
6	4
7	4
8	12
9	2
10	6
11	8
12	8
13	8
14	56
15	56
16	8
17	12
18	12
19	12
20	12
21	12
22	12
23	16
24	80
25	70
26	126
27	144
28	16
29	22
30	22
31	16
32	208
33	234
34	198
35	264
36	24
37	20
38	12
39	40
40	24
41	30
42	30
43	24
44	56
45	56
46	24
47	32
48	224
49	210
50	570
51	532
52	28
53	36
54	60
55	480
56	672
57	70
58	30
59	44
60	44
61	32
62	864
63	864
64	544
65	782
66	46
67	36
68	900