A131866 - cp's OEIS frontend

A131866 Distance of n-th semiprime to nearest square.

n	a(n)
1	0
2	2
3	0
4	1
5	2
6	1
7	4
8	3
9	0
10	1
11	3
12	2
13	1
14	2
15	3
16	3
17	0
18	2
19	6
20	7
21	6
22	2
23	1
24	5
25	7
26	4
27	1
28	4
29	5
30	6
31	9
32	7
33	6
34	5
35	6
36	10
37	6
38	3
39	2
40	0
41	1
42	2
43	8
44	11
45	10
46	3
47	2
48	1
49	1
50	2
51	11
52	11
53	10
54	8
55	3
56	0
57	8
58	9
59	13
60	11
61	9
62	2
63	5
64	6
65	7
66	9
67	10
68	13
69	12
70	11
71	10
72	8
73	7
74	6
75	4
76	1
77	10
78	12
79	9
80	7
81	3
82	2
83	3
84	6
85	9
86	11
87	15
88	11
89	2
90	0
91	2
92	6
93	9
94	10
95	12

[0, 2, 0, 1, 2, 1, 4, 3, 0, 1, 3, 2, 1, 2, 3, 3, 0, 2, 6, 7, 6, 2, 1, 5, 7, 4, 1, 4, 5, 6, 9, 7, 6, 5, 6, 10, 6, 3, 2, 0, 1, 2, 8, 11, 10, 3, 2, 1, 1, 2, 11, 11, 10, 8, 3, 0, 8, 9, 13, 11, 9, 2, 5, 6, 7, 9, 10, 13, 12, 11, 10, 8, 7, 6, 4, 1, 10, 12, 9, 7, 3, 2, 3, 6, 9, 11, 15, 11, 2, 0, 2, 6, 9, 10, 12]

cp's OEIS Frontend

A131866 Distance of n-th semiprime to nearest square.

Table of values

List of values

n	a(n)
1	0
2	2
3	0
4	1
5	2
6	1
7	4
8	3
9	0
10	1
11	3
12	2
13	1
14	2
15	3
16	3
17	0
18	2
19	6
20	7
21	6
22	2
23	1
24	5
25	7
26	4
27	1
28	4
29	5
30	6
31	9
32	7
33	6
34	5
35	6
36	10
37	6
38	3
39	2
40	0
41	1
42	2
43	8
44	11
45	10
46	3
47	2
48	1
49	1
50	2
51	11
52	11
53	10
54	8
55	3
56	0
57	8
58	9
59	13
60	11
61	9
62	2
63	5
64	6
65	7
66	9
67	10
68	13
69	12
70	11
71	10
72	8
73	7
74	6
75	4
76	1
77	10
78	12
79	9
80	7
81	3
82	2
83	3
84	6
85	9
86	11
87	15
88	11
89	2
90	0
91	2
92	6
93	9
94	10
95	12

n	a(n)
1	0
2	2
3	0
4	1
5	2
6	1
7	4
8	3
9	0
10	1
11	3
12	2
13	1
14	2
15	3
16	3
17	0
18	2
19	6
20	7
21	6
22	2
23	1
24	5
25	7
26	4
27	1
28	4
29	5
30	6
31	9
32	7
33	6
34	5
35	6
36	10
37	6
38	3
39	2
40	0
41	1
42	2
43	8
44	11
45	10
46	3
47	2
48	1
49	1
50	2
51	11
52	11
53	10
54	8
55	3
56	0
57	8
58	9
59	13
60	11
61	9
62	2
63	5
64	6
65	7
66	9
67	10
68	13
69	12
70	11
71	10
72	8
73	7
74	6
75	4
76	1
77	10
78	12
79	9
80	7
81	3
82	2
83	3
84	6
85	9
86	11
87	15
88	11
89	2
90	0
91	2
92	6
93	9
94	10
95	12

n	a(n)
1	0
2	2
3	0
4	1
5	2
6	1
7	4
8	3
9	0
10	1
11	3
12	2
13	1
14	2
15	3
16	3
17	0
18	2
19	6
20	7
21	6
22	2
23	1
24	5
25	7
26	4
27	1
28	4
29	5
30	6
31	9
32	7
33	6
34	5
35	6
36	10
37	6
38	3
39	2
40	0
41	1
42	2
43	8
44	11
45	10
46	3
47	2
48	1
49	1
50	2
51	11
52	11
53	10
54	8
55	3
56	0
57	8
58	9
59	13
60	11
61	9
62	2
63	5
64	6
65	7
66	9
67	10
68	13
69	12
70	11
71	10
72	8
73	7
74	6
75	4
76	1
77	10
78	12
79	9
80	7
81	3
82	2
83	3
84	6
85	9
86	11
87	15
88	11
89	2
90	0
91	2
92	6
93	9
94	10
95	12