A166333 - cp's OEIS frontend

A166333 The largest prime that divides A027642(n) (the denominator of the Bernoulli number B_n), or 1 if A027642(n) is 1.

n	a(n)
0	1
1	2
2	3
3	1
4	5
5	1
6	7
7	1
8	5
9	1
10	11
11	1
12	13
13	1
14	3
15	1
16	17
17	1
18	19
19	1
20	11
21	1
22	23
23	1
24	13
25	1
26	3
27	1
28	29
29	1
30	31
31	1
32	17
33	1
34	3
35	1
36	37
37	1
38	3
39	1
40	41
41	1
42	43
43	1
44	23
45	1
46	47
47	1
48	17
49	1
50	11
51	1
52	53
53	1
54	19
55	1
56	29
57	1
58	59
59	1
60	61
61	1
62	3
63	1
64	17
65	1
66	67
67	1
68	5
69	1
70	71
71	1
72	73
73	1
74	3
75	1
76	5
77	1
78	79
79	1
80	41
81	1
82	83
83	1
84	43
85	1
86	3
87	1
88	89
89	1

[1, 2, 3, 1, 5, 1, 7, 1, 5, 1, 11, 1, 13, 1, 3, 1, 17, 1, 19, 1, 11, 1, 23, 1, 13, 1, 3, 1, 29, 1, 31, 1, 17, 1, 3, 1, 37, 1, 3, 1, 41, 1, 43, 1, 23, 1, 47, 1, 17, 1, 11, 1, 53, 1, 19, 1, 29, 1, 59, 1, 61, 1, 3, 1, 17, 1, 67, 1, 5, 1, 71, 1, 73, 1, 3, 1, 5, 1, 79, 1, 41, 1, 83, 1, 43, 1, 3, 1, 89, 1]

cp's OEIS Frontend

A166333 The largest prime that divides A027642(n) (the denominator of the Bernoulli number B_n), or 1 if A027642(n) is 1.

Table of values

List of values

n	a(n)
0	1
1	2
2	3
3	1
4	5
5	1
6	7
7	1
8	5
9	1
10	11
11	1
12	13
13	1
14	3
15	1
16	17
17	1
18	19
19	1
20	11
21	1
22	23
23	1
24	13
25	1
26	3
27	1
28	29
29	1
30	31
31	1
32	17
33	1
34	3
35	1
36	37
37	1
38	3
39	1
40	41
41	1
42	43
43	1
44	23
45	1
46	47
47	1
48	17
49	1
50	11
51	1
52	53
53	1
54	19
55	1
56	29
57	1
58	59
59	1
60	61
61	1
62	3
63	1
64	17
65	1
66	67
67	1
68	5
69	1
70	71
71	1
72	73
73	1
74	3
75	1
76	5
77	1
78	79
79	1
80	41
81	1
82	83
83	1
84	43
85	1
86	3
87	1
88	89
89	1

n	a(n)
0	1
1	2
2	3
3	1
4	5
5	1
6	7
7	1
8	5
9	1
10	11
11	1
12	13
13	1
14	3
15	1
16	17
17	1
18	19
19	1
20	11
21	1
22	23
23	1
24	13
25	1
26	3
27	1
28	29
29	1
30	31
31	1
32	17
33	1
34	3
35	1
36	37
37	1
38	3
39	1
40	41
41	1
42	43
43	1
44	23
45	1
46	47
47	1
48	17
49	1
50	11
51	1
52	53
53	1
54	19
55	1
56	29
57	1
58	59
59	1
60	61
61	1
62	3
63	1
64	17
65	1
66	67
67	1
68	5
69	1
70	71
71	1
72	73
73	1
74	3
75	1
76	5
77	1
78	79
79	1
80	41
81	1
82	83
83	1
84	43
85	1
86	3
87	1
88	89
89	1

n	a(n)
0	1
1	2
2	3
3	1
4	5
5	1
6	7
7	1
8	5
9	1
10	11
11	1
12	13
13	1
14	3
15	1
16	17
17	1
18	19
19	1
20	11
21	1
22	23
23	1
24	13
25	1
26	3
27	1
28	29
29	1
30	31
31	1
32	17
33	1
34	3
35	1
36	37
37	1
38	3
39	1
40	41
41	1
42	43
43	1
44	23
45	1
46	47
47	1
48	17
49	1
50	11
51	1
52	53
53	1
54	19
55	1
56	29
57	1
58	59
59	1
60	61
61	1
62	3
63	1
64	17
65	1
66	67
67	1
68	5
69	1
70	71
71	1
72	73
73	1
74	3
75	1
76	5
77	1
78	79
79	1
80	41
81	1
82	83
83	1
84	43
85	1
86	3
87	1
88	89
89	1