A237115 - cp's OEIS frontend

A237115 Lesser prime factor of the smallest semiprime of the form k^prime(n)+1, or 0 if no such semiprime exists.

n	a(n)
1	2
2	3
3	3
4	3
5	3
6	3
7	3
8	3
9	3
10	691
11	3
12	17
13	313
14	3
15	7
16	11
17	7
18	3
19	11
20	47
21	19
22	3
23	1499
24	17
25	71
26	3
27	97
28	7
29	13
30	823
31	3
32	97
33	1163
34	31
35	17
36	199
37	1907
38	53
39	3
40	17
41	1231
42	1013
43	3
44	13
45	53
46	3
47	67
48	47
49	23
50	1013
51	787
52	127
53	347
54	17
55	37
56	97
57	683
58	631
59	73
60	4549
61	173
62	11
63	17
64	1039
65	3
66	17
67	47
68	6389
69	3
70	461
71	23
72	673
73	37
74	29
75	331
76	7451
77	1433
78	4561

[2, 3, 3, 3, 3, 3, 3, 3, 3, 691, 3, 17, 313, 3, 7, 11, 7, 3, 11, 47, 19, 3, 1499, 17, 71, 3, 97, 7, 13, 823, 3, 97, 1163, 31, 17, 199, 1907, 53, 3, 17, 1231, 1013, 3, 13, 53, 3, 67, 47, 23, 1013, 787, 127, 347, 17, 37, 97, 683, 631, 73, 4549, 173, 11, 17, 1039, 3, 17, 47, 6389, 3, 461, 23, 673, 37, 29, 331, 7451, 1433, 4561]

cp's OEIS Frontend

A237115 Lesser prime factor of the smallest semiprime of the form k^prime(n)+1, or 0 if no such semiprime exists.

Table of values

List of values