A322574 - cp's OEIS frontend

A322574 z(1) = 0, and for any n > 0, z(4n-2) = z(n) + k(n), z(4n-1) = z(n) + ik(n), z(4n) = z(n) - k(n) and z(4n+1) = z(n) - ik(n) where k(n) is the least positive integer not leading to a duplicate term in sequence z (and i denotes the imaginary unit); a(n) is the real part of z(n).

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

[0, 1, 0, -1, 0, 4, 1, -2, 1, 3, 0, -3, 0, 2, -1, -4, -1, 3, 0, -3, 0, 5, 4, 3, 4, 2, 1, 0, 1, 6, -2, -10, -2, 2, 1, 0, 1, 7, 3, -1, 3, 9, 0, -9, 0, -2, -3, -4, -3, 7, 0, -7, 0, 9, 2, -5, 2, 3, -1, -5, -1, 7, -4, -15, -4, 4, -1, -6, -1, 8, 3, -2, 3, 8, 0, -8, 0]

cp's OEIS Frontend

A322574 z(1) = 0, and for any n > 0, z(4n-2) = z(n) + k(n), z(4n-1) = z(n) + ik(n), z(4n) = z(n) - k(n) and z(4n+1) = z(n) - ik(n) where k(n) is the least positive integer not leading to a duplicate term in sequence z (and i denotes the imaginary unit); a(n) is the real part of z(n).

Table of values

List of values

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

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

cp's OEIS Frontend

A322574 z(1) = 0, and for any n > 0, z(4*n-2) = z(n) + k(n), z(4*n-1) = z(n) + i*k(n), z(4*n) = z(n) - k(n) and z(4*n+1) = z(n) - i*k(n) where k(n) is the least positive integer not leading to a duplicate term in sequence z (and i denotes the imaginary unit); a(n) is the real part of z(n).

Table of values

List of values

A322574 z(1) = 0, and for any n > 0, z(4n-2) = z(n) + k(n), z(4n-1) = z(n) + ik(n), z(4n) = z(n) - k(n) and z(4n+1) = z(n) - ik(n) where k(n) is the least positive integer not leading to a duplicate term in sequence z (and i denotes the imaginary unit); a(n) is the real part of z(n).

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