A290536 - cp's OEIS frontend

A290536 Let S be the sequence generated by these rules: 0 is in S, and if z is in S, then z + 1 and z * (1+i) are in S (where i denotes the imaginary unit), and duplicates are deleted as they occur; a(n) = the real part of the n-th term of S.

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

[0, 1, 2, 1, 3, 2, 2, 0, 4, 3, 3, 0, 3, 1, 1, -2, 5, 4, 4, 0, 4, 1, 1, -4, 4, 2, 2, -2, -1, -1, -4, 6, 5, 5, 0, 5, 1, 1, -6, 5, 2, 2, -4, -3, -3, -8, 5, 3, 3, -2, -1, -1, -6, 0, -4, -3, -3, -4, 7, 6, 6, 0, 6, 1, 1, -8, 6, 2, 2, -6, -5, -5, -12, 6, 3, 3, -4, -3]

cp's OEIS Frontend

A290536 Let S be the sequence generated by these rules: 0 is in S, and if z is in S, then z + 1 and z * (1+i) are in S (where i denotes the imaginary unit), and duplicates are deleted as they occur; a(n) = the real part of the n-th term of S.

Table of values

List of values

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

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

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