A121885 - cp's OEIS frontend

A121885 Excess of n-th prime over previous semiprime.

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

[1, 1, 1, 3, 2, 4, 1, 3, 5, 2, 2, 4, 1, 2, 1, 3, 2, 2, 4, 2, 1, 2, 2, 6, 8, 1, 3, 2, 4, 2, 3, 5, 3, 5, 2, 2, 1, 4, 1, 3, 4, 6, 3, 5, 2, 2, 1, 3, 7, 2, 4, 2, 3, 1, 2, 4, 3, 3, 5, 2, 2, 2, 4, 3, 2, 2, 1, 3, 7, 1, 2, 2, 2, 1, 3, 2, 3, 2, 2, 4, 4, 6, 2, 6, 2, 3, 3]

cp's OEIS Frontend

A121885 Excess of n-th prime over previous semiprime.

Table of values

List of values

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

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

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