A230293 - cp's OEIS frontend

A230293 a(n) = Sum_{i=1..n} d(8i+1) - Sum_{i=1..n} d(4i+1), where d(n) = A000005(n).

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

[1, 0, 1, 3, 1, 1, 3, 3, 3, 6, 2, 1, 7, 5, 6, 6, 4, 6, 8, 7, 6, 8, 8, 8, 10, 6, 8, 15, 11, 10, 10, 8, 8, 14, 12, 11, 17, 15, 15, 15, 11, 10, 16, 14, 15, 17, 13, 19, 21, 19, 17, 17, 19, 17, 22, 15, 15, 21, 21, 23, 21, 21, 21, 27, 23, 22, 24, 20, 22, 28, 22, 21, 31, 25, 23, 27, 25, 28, 30, 28, 26, 28, 30, 30, 30, 26, 28]

cp's OEIS Frontend

A230293 a(n) = Sum_{i=1..n} d(8i+1) - Sum_{i=1..n} d(4i+1), where d(n) = A000005(n).

Table of values

List of values

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

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

cp's OEIS Frontend

A230293 a(n) = Sum_{i=1..n} d(8*i+1) - Sum_{i=1..n} d(4*i+1), where d(n) = A000005(n).

Table of values

List of values

A230293 a(n) = Sum_{i=1..n} d(8i+1) - Sum_{i=1..n} d(4i+1), where d(n) = A000005(n).

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