A060210 - cp's OEIS frontend

A060210 Largest prime factor of 1+smaller term of twin primes.

n	a(n)
1	2
2	3
3	3
4	3
5	5
6	7
7	5
8	3
9	17
10	3
11	23
12	5
13	5
14	3
15	11
16	19
17	5
18	5
19	47
20	13
21	29
22	7
23	3
24	11
25	29
26	19
27	5
28	103
29	107
30	11
31	5
32	137
33	23
34	13
35	7
36	17
37	43
38	7
39	59
40	13
41	3
42	41
43	71
44	43
45	31
46	11
47	17
48	11
49	19
50	31
51	67
52	5
53	139
54	283
55	41
56	149
57	13
58	313
59	23
60	13
61	37
62	13
63	347
64	29
65	11
66	71
67	17
68	373
69	7
70	11
71	13
72	397
73	17

[2, 3, 3, 3, 5, 7, 5, 3, 17, 3, 23, 5, 5, 3, 11, 19, 5, 5, 47, 13, 29, 7, 3, 11, 29, 19, 5, 103, 107, 11, 5, 137, 23, 13, 7, 17, 43, 7, 59, 13, 3, 41, 71, 43, 31, 11, 17, 11, 19, 31, 67, 5, 139, 283, 41, 149, 13, 313, 23, 13, 37, 13, 347, 29, 11, 71, 17, 373, 7, 11, 13, 397, 17]

cp's OEIS Frontend

A060210 Largest prime factor of 1+smaller term of twin primes.

Table of values

List of values

n	a(n)
1	2
2	3
3	3
4	3
5	5
6	7
7	5
8	3
9	17
10	3
11	23
12	5
13	5
14	3
15	11
16	19
17	5
18	5
19	47
20	13
21	29
22	7
23	3
24	11
25	29
26	19
27	5
28	103
29	107
30	11
31	5
32	137
33	23
34	13
35	7
36	17
37	43
38	7
39	59
40	13
41	3
42	41
43	71
44	43
45	31
46	11
47	17
48	11
49	19
50	31
51	67
52	5
53	139
54	283
55	41
56	149
57	13
58	313
59	23
60	13
61	37
62	13
63	347
64	29
65	11
66	71
67	17
68	373
69	7
70	11
71	13
72	397
73	17

n	a(n)
1	2
2	3
3	3
4	3
5	5
6	7
7	5
8	3
9	17
10	3
11	23
12	5
13	5
14	3
15	11
16	19
17	5
18	5
19	47
20	13
21	29
22	7
23	3
24	11
25	29
26	19
27	5
28	103
29	107
30	11
31	5
32	137
33	23
34	13
35	7
36	17
37	43
38	7
39	59
40	13
41	3
42	41
43	71
44	43
45	31
46	11
47	17
48	11
49	19
50	31
51	67
52	5
53	139
54	283
55	41
56	149
57	13
58	313
59	23
60	13
61	37
62	13
63	347
64	29
65	11
66	71
67	17
68	373
69	7
70	11
71	13
72	397
73	17

n	a(n)
1	2
2	3
3	3
4	3
5	5
6	7
7	5
8	3
9	17
10	3
11	23
12	5
13	5
14	3
15	11
16	19
17	5
18	5
19	47
20	13
21	29
22	7
23	3
24	11
25	29
26	19
27	5
28	103
29	107
30	11
31	5
32	137
33	23
34	13
35	7
36	17
37	43
38	7
39	59
40	13
41	3
42	41
43	71
44	43
45	31
46	11
47	17
48	11
49	19
50	31
51	67
52	5
53	139
54	283
55	41
56	149
57	13
58	313
59	23
60	13
61	37
62	13
63	347
64	29
65	11
66	71
67	17
68	373
69	7
70	11
71	13
72	397
73	17