A085417 - cp's OEIS frontend

A085417 Take prime[n] and continue adding n,n+1,..., n+a(n)-1 until one reaches a prime.

n	a(n)
1	1
2	1
3	3
4	1
5	3
6	1
7	3
8	9
9	3
10	5
11	3
12	5
13	3
14	12
15	4
16	9
17	3
18	1
19	3
20	4
21	3
22	1
23	4
24	1
25	7
26	1
27	7
28	5
29	3
30	4
31	3
32	1
33	3
34	1
35	3
36	8
37	3
38	9
39	7
40	5
41	4
42	1
43	8
44	12
45	4
46	4
47	15
48	1
49	8
50	21
51	3
52	5
53	24
54	9
55	12
56	8
57	3
58	4
59	3
60	9
61	11
62	4
63	3
64	5
65	48
66	1
67	7
68	33
69	3
70	1
71	3
72	1
73	15
74	12
75	3
76	5
77	8
78	5
79	3
80	36
81	19
82	1
83	3
84	5
85	11
86	5
87	12
88	5
89	4
90	4
91	3
92	1
93	3
94	5
95	3
96	1
97	15
98	1

[1, 1, 3, 1, 3, 1, 3, 9, 3, 5, 3, 5, 3, 12, 4, 9, 3, 1, 3, 4, 3, 1, 4, 1, 7, 1, 7, 5, 3, 4, 3, 1, 3, 1, 3, 8, 3, 9, 7, 5, 4, 1, 8, 12, 4, 4, 15, 1, 8, 21, 3, 5, 24, 9, 12, 8, 3, 4, 3, 9, 11, 4, 3, 5, 48, 1, 7, 33, 3, 1, 3, 1, 15, 12, 3, 5, 8, 5, 3, 36, 19, 1, 3, 5, 11, 5, 12, 5, 4, 4, 3, 1, 3, 5, 3, 1, 15, 1]

cp's OEIS Frontend

A085417 Take prime[n] and continue adding n,n+1,..., n+a(n)-1 until one reaches a prime.

Table of values

List of values

n	a(n)
1	1
2	1
3	3
4	1
5	3
6	1
7	3
8	9
9	3
10	5
11	3
12	5
13	3
14	12
15	4
16	9
17	3
18	1
19	3
20	4
21	3
22	1
23	4
24	1
25	7
26	1
27	7
28	5
29	3
30	4
31	3
32	1
33	3
34	1
35	3
36	8
37	3
38	9
39	7
40	5
41	4
42	1
43	8
44	12
45	4
46	4
47	15
48	1
49	8
50	21
51	3
52	5
53	24
54	9
55	12
56	8
57	3
58	4
59	3
60	9
61	11
62	4
63	3
64	5
65	48
66	1
67	7
68	33
69	3
70	1
71	3
72	1
73	15
74	12
75	3
76	5
77	8
78	5
79	3
80	36
81	19
82	1
83	3
84	5
85	11
86	5
87	12
88	5
89	4
90	4
91	3
92	1
93	3
94	5
95	3
96	1
97	15
98	1

n	a(n)
1	1
2	1
3	3
4	1
5	3
6	1
7	3
8	9
9	3
10	5
11	3
12	5
13	3
14	12
15	4
16	9
17	3
18	1
19	3
20	4
21	3
22	1
23	4
24	1
25	7
26	1
27	7
28	5
29	3
30	4
31	3
32	1
33	3
34	1
35	3
36	8
37	3
38	9
39	7
40	5
41	4
42	1
43	8
44	12
45	4
46	4
47	15
48	1
49	8
50	21
51	3
52	5
53	24
54	9
55	12
56	8
57	3
58	4
59	3
60	9
61	11
62	4
63	3
64	5
65	48
66	1
67	7
68	33
69	3
70	1
71	3
72	1
73	15
74	12
75	3
76	5
77	8
78	5
79	3
80	36
81	19
82	1
83	3
84	5
85	11
86	5
87	12
88	5
89	4
90	4
91	3
92	1
93	3
94	5
95	3
96	1
97	15
98	1

n	a(n)
1	1
2	1
3	3
4	1
5	3
6	1
7	3
8	9
9	3
10	5
11	3
12	5
13	3
14	12
15	4
16	9
17	3
18	1
19	3
20	4
21	3
22	1
23	4
24	1
25	7
26	1
27	7
28	5
29	3
30	4
31	3
32	1
33	3
34	1
35	3
36	8
37	3
38	9
39	7
40	5
41	4
42	1
43	8
44	12
45	4
46	4
47	15
48	1
49	8
50	21
51	3
52	5
53	24
54	9
55	12
56	8
57	3
58	4
59	3
60	9
61	11
62	4
63	3
64	5
65	48
66	1
67	7
68	33
69	3
70	1
71	3
72	1
73	15
74	12
75	3
76	5
77	8
78	5
79	3
80	36
81	19
82	1
83	3
84	5
85	11
86	5
87	12
88	5
89	4
90	4
91	3
92	1
93	3
94	5
95	3
96	1
97	15
98	1