A063084 - cp's OEIS frontend

A063084 a(n) = pi(n-1)n - pi(n)(n-1), where pi() = A000720().

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

[0, -1, -1, 2, -2, 3, -3, 4, 4, 4, -6, 5, -7, 6, 6, 6, -10, 7, -11, 8, 8, 8, -14, 9, 9, 9, 9, 9, -19, 10, -20, 11, 11, 11, 11, 11, -25, 12, 12, 12, -28, 13, -29, 14, 14, 14, -32, 15, 15, 15, 15, 15, -37, 16, 16, 16, 16, 16, -42, 17, -43, 18, 18, 18, 18, 18, -48, 19, 19, 19, -51, 20, -52, 21, 21, 21, 21, 21, -57, 22, 22, 22, -60, 23, 23]

cp's OEIS Frontend

A063084 a(n) = pi(n-1)n - pi(n)(n-1), where pi() = A000720().

Table of values

List of values

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

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

cp's OEIS Frontend

A063084 a(n) = pi(n-1)*n - pi(n)*(n-1), where pi() = A000720().

Table of values

List of values

A063084 a(n) = pi(n-1)n - pi(n)(n-1), where pi() = A000720().

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