A095194 - cp's OEIS frontend

A095194 Least number that yields a semiprime when appended to n!.

n	a(n)
1	0
2	1
3	2
4	7
5	2
6	1
7	1
8	1
9	1
10	1
11	2
12	1
13	1
14	7
15	17
16	1
17	1
18	1
19	31
20	13
21	1
22	59
23	13
24	7
25	1
26	61
27	41
28	37
29	31
30	1
31	7
32	7
33	1
34	2
35	5
36	61
37	41
38	7
39	13
40	37
41	61
42	43
43	1
44	1
45	47
46	67
47	1
48	3
49	67
50	61
51	5
52	19
53	5
54	11
55	7
56	13
57	1
58	3
59	1
60	71
61	11
62	1
63	67
64	109
65	103
66	43
67	29

[0, 1, 2, 7, 2, 1, 1, 1, 1, 1, 2, 1, 1, 7, 17, 1, 1, 1, 31, 13, 1, 59, 13, 7, 1, 61, 41, 37, 31, 1, 7, 7, 1, 2, 5, 61, 41, 7, 13, 37, 61, 43, 1, 1, 47, 67, 1, 3, 67, 61, 5, 19, 5, 11, 7, 13, 1, 3, 1, 71, 11, 1, 67, 109, 103, 43, 29]

cp's OEIS Frontend

A095194 Least number that yields a semiprime when appended to n!.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	7
5	2
6	1
7	1
8	1
9	1
10	1
11	2
12	1
13	1
14	7
15	17
16	1
17	1
18	1
19	31
20	13
21	1
22	59
23	13
24	7
25	1
26	61
27	41
28	37
29	31
30	1
31	7
32	7
33	1
34	2
35	5
36	61
37	41
38	7
39	13
40	37
41	61
42	43
43	1
44	1
45	47
46	67
47	1
48	3
49	67
50	61
51	5
52	19
53	5
54	11
55	7
56	13
57	1
58	3
59	1
60	71
61	11
62	1
63	67
64	109
65	103
66	43
67	29

n	a(n)
1	0
2	1
3	2
4	7
5	2
6	1
7	1
8	1
9	1
10	1
11	2
12	1
13	1
14	7
15	17
16	1
17	1
18	1
19	31
20	13
21	1
22	59
23	13
24	7
25	1
26	61
27	41
28	37
29	31
30	1
31	7
32	7
33	1
34	2
35	5
36	61
37	41
38	7
39	13
40	37
41	61
42	43
43	1
44	1
45	47
46	67
47	1
48	3
49	67
50	61
51	5
52	19
53	5
54	11
55	7
56	13
57	1
58	3
59	1
60	71
61	11
62	1
63	67
64	109
65	103
66	43
67	29

n	a(n)
1	0
2	1
3	2
4	7
5	2
6	1
7	1
8	1
9	1
10	1
11	2
12	1
13	1
14	7
15	17
16	1
17	1
18	1
19	31
20	13
21	1
22	59
23	13
24	7
25	1
26	61
27	41
28	37
29	31
30	1
31	7
32	7
33	1
34	2
35	5
36	61
37	41
38	7
39	13
40	37
41	61
42	43
43	1
44	1
45	47
46	67
47	1
48	3
49	67
50	61
51	5
52	19
53	5
54	11
55	7
56	13
57	1
58	3
59	1
60	71
61	11
62	1
63	67
64	109
65	103
66	43
67	29