A047972 - cp's OEIS frontend

A047972 Distance of n-th prime to nearest square.

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

[1, 1, 1, 2, 2, 3, 1, 3, 2, 4, 5, 1, 5, 6, 2, 4, 5, 3, 3, 7, 8, 2, 2, 8, 3, 1, 3, 7, 9, 8, 6, 10, 7, 5, 5, 7, 12, 6, 2, 4, 10, 12, 5, 3, 1, 3, 14, 2, 2, 4, 8, 14, 15, 5, 1, 7, 13, 15, 12, 8, 6, 4, 17, 13, 11, 7, 7, 13, 14, 12, 8, 2, 6, 12, 18, 17, 11, 3, 1, 9, 19, 20, 10, 8, 2, 2, 8, 16, 20, 21]

cp's OEIS Frontend

A047972 Distance of n-th prime to nearest square.

Table of values

List of values

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

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

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