A114187 - cp's OEIS frontend

A114187 Difference between first semiprime >= n! and n!. Least k such that n!+k is semiprime.

n	a(n)
0	3
1	3
2	2
3	0
4	1
5	1
6	1
7	1
8	1
9	5
10	1
11	3
12	17
13	1
14	1
15	7
16	2
17	3
18	23
19	1
20	1
21	11
22	29
23	3
24	1
25	1
26	1
27	37
28	1
29	41
30	2
31	19
32	11
33	11
34	1
35	7
36	3
37	41
38	1
39	13
40	127
41	47
42	59
43	2
44	37
45	5
46	37
47	59
48	1
49	2
50	73
51	59
52	79
53	73
54	1
55	1
56	61
57	118
58	37
59	1
60	61

[3, 3, 2, 0, 1, 1, 1, 1, 1, 5, 1, 3, 17, 1, 1, 7, 2, 3, 23, 1, 1, 11, 29, 3, 1, 1, 1, 37, 1, 41, 2, 19, 11, 11, 1, 7, 3, 41, 1, 13, 127, 47, 59, 2, 37, 5, 37, 59, 1, 2, 73, 59, 79, 73, 1, 1, 61, 118, 37, 1, 61]

cp's OEIS Frontend

A114187 Difference between first semiprime >= n! and n!. Least k such that n!+k is semiprime.

Table of values

List of values

n	a(n)
0	3
1	3
2	2
3	0
4	1
5	1
6	1
7	1
8	1
9	5
10	1
11	3
12	17
13	1
14	1
15	7
16	2
17	3
18	23
19	1
20	1
21	11
22	29
23	3
24	1
25	1
26	1
27	37
28	1
29	41
30	2
31	19
32	11
33	11
34	1
35	7
36	3
37	41
38	1
39	13
40	127
41	47
42	59
43	2
44	37
45	5
46	37
47	59
48	1
49	2
50	73
51	59
52	79
53	73
54	1
55	1
56	61
57	118
58	37
59	1
60	61

n	a(n)
0	3
1	3
2	2
3	0
4	1
5	1
6	1
7	1
8	1
9	5
10	1
11	3
12	17
13	1
14	1
15	7
16	2
17	3
18	23
19	1
20	1
21	11
22	29
23	3
24	1
25	1
26	1
27	37
28	1
29	41
30	2
31	19
32	11
33	11
34	1
35	7
36	3
37	41
38	1
39	13
40	127
41	47
42	59
43	2
44	37
45	5
46	37
47	59
48	1
49	2
50	73
51	59
52	79
53	73
54	1
55	1
56	61
57	118
58	37
59	1
60	61

n	a(n)
0	3
1	3
2	2
3	0
4	1
5	1
6	1
7	1
8	1
9	5
10	1
11	3
12	17
13	1
14	1
15	7
16	2
17	3
18	23
19	1
20	1
21	11
22	29
23	3
24	1
25	1
26	1
27	37
28	1
29	41
30	2
31	19
32	11
33	11
34	1
35	7
36	3
37	41
38	1
39	13
40	127
41	47
42	59
43	2
44	37
45	5
46	37
47	59
48	1
49	2
50	73
51	59
52	79
53	73
54	1
55	1
56	61
57	118
58	37
59	1
60	61