A375907 - cp's OEIS frontend

A375907 Lexicographically earliest sequence where a(n) is the length of the n-th block of distinct integers sharing a prime factor.

n	a(n)
1	2
2	4
3	3
4	6
5	2
6	4
7	3
8	6
9	2
10	3
11	6
12	2
13	4
14	8
15	10
16	3
17	6
18	5
19	10
20	2
21	4
22	3
23	6
24	2
25	3
26	6
27	2
28	4
29	8
30	10
31	3
32	6
33	5
34	10
35	2
36	3
37	6
38	2
39	4
40	8
41	10
42	3
43	6
44	5
45	10
46	2
47	4
48	3
49	6
50	2
51	4
52	8
53	10
54	5
55	15
56	2
57	4
58	6
59	3
60	9
61	12
62	8
63	10
64	5
65	15
66	2
67	4
68	6
69	5
70	10
71	2
72	4
73	6
74	3
75	2
76	4
77	6
78	3
79	9
80	2
81	4
82	6
83	3
84	9
85	12
86	8
87	10
88	5
89	15
90	2
91	4
92	3
93	6
94	2
95	4

[2, 4, 3, 6, 2, 4, 3, 6, 2, 3, 6, 2, 4, 8, 10, 3, 6, 5, 10, 2, 4, 3, 6, 2, 3, 6, 2, 4, 8, 10, 3, 6, 5, 10, 2, 3, 6, 2, 4, 8, 10, 3, 6, 5, 10, 2, 4, 3, 6, 2, 4, 8, 10, 5, 15, 2, 4, 6, 3, 9, 12, 8, 10, 5, 15, 2, 4, 6, 5, 10, 2, 4, 6, 3, 2, 4, 6, 3, 9, 2, 4, 6, 3, 9, 12, 8, 10, 5, 15, 2, 4, 3, 6, 2, 4]

cp's OEIS Frontend

A375907 Lexicographically earliest sequence where a(n) is the length of the n-th block of distinct integers sharing a prime factor.

Table of values

List of values

n	a(n)
1	2
2	4
3	3
4	6
5	2
6	4
7	3
8	6
9	2
10	3
11	6
12	2
13	4
14	8
15	10
16	3
17	6
18	5
19	10
20	2
21	4
22	3
23	6
24	2
25	3
26	6
27	2
28	4
29	8
30	10
31	3
32	6
33	5
34	10
35	2
36	3
37	6
38	2
39	4
40	8
41	10
42	3
43	6
44	5
45	10
46	2
47	4
48	3
49	6
50	2
51	4
52	8
53	10
54	5
55	15
56	2
57	4
58	6
59	3
60	9
61	12
62	8
63	10
64	5
65	15
66	2
67	4
68	6
69	5
70	10
71	2
72	4
73	6
74	3
75	2
76	4
77	6
78	3
79	9
80	2
81	4
82	6
83	3
84	9
85	12
86	8
87	10
88	5
89	15
90	2
91	4
92	3
93	6
94	2
95	4

n	a(n)
1	2
2	4
3	3
4	6
5	2
6	4
7	3
8	6
9	2
10	3
11	6
12	2
13	4
14	8
15	10
16	3
17	6
18	5
19	10
20	2
21	4
22	3
23	6
24	2
25	3
26	6
27	2
28	4
29	8
30	10
31	3
32	6
33	5
34	10
35	2
36	3
37	6
38	2
39	4
40	8
41	10
42	3
43	6
44	5
45	10
46	2
47	4
48	3
49	6
50	2
51	4
52	8
53	10
54	5
55	15
56	2
57	4
58	6
59	3
60	9
61	12
62	8
63	10
64	5
65	15
66	2
67	4
68	6
69	5
70	10
71	2
72	4
73	6
74	3
75	2
76	4
77	6
78	3
79	9
80	2
81	4
82	6
83	3
84	9
85	12
86	8
87	10
88	5
89	15
90	2
91	4
92	3
93	6
94	2
95	4

n	a(n)
1	2
2	4
3	3
4	6
5	2
6	4
7	3
8	6
9	2
10	3
11	6
12	2
13	4
14	8
15	10
16	3
17	6
18	5
19	10
20	2
21	4
22	3
23	6
24	2
25	3
26	6
27	2
28	4
29	8
30	10
31	3
32	6
33	5
34	10
35	2
36	3
37	6
38	2
39	4
40	8
41	10
42	3
43	6
44	5
45	10
46	2
47	4
48	3
49	6
50	2
51	4
52	8
53	10
54	5
55	15
56	2
57	4
58	6
59	3
60	9
61	12
62	8
63	10
64	5
65	15
66	2
67	4
68	6
69	5
70	10
71	2
72	4
73	6
74	3
75	2
76	4
77	6
78	3
79	9
80	2
81	4
82	6
83	3
84	9
85	12
86	8
87	10
88	5
89	15
90	2
91	4
92	3
93	6
94	2
95	4