A374318 - cp's OEIS frontend

A374318 For any n > 0, let b_n(n+1) = 0, and for k = 1..n, if b_n(k+1) >= k then b_n(k) = b_n(k+1) - k otherwise b_n(k) = b_n(k+1) + k; a(n) = b_n(1).

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

[0, 1, 1, 0, 2, 1, 1, 2, 0, 1, 1, 2, 0, 1, 1, 2, 2, 1, 1, 0, 2, 1, 1, 0, 2, 1, 1, 0, 2, 1, 1, 0, 2, 1, 1, 0, 2, 1, 1, 0, 2, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 0, 1, 1, 2, 0, 1, 1, 2, 0, 1, 1, 2, 0, 1, 1, 2, 0, 1, 1, 2, 0, 1, 1, 2, 0, 1, 1, 2, 0, 1, 1, 2, 0, 1, 1]

cp's OEIS Frontend

A374318 For any n > 0, let b_n(n+1) = 0, and for k = 1..n, if b_n(k+1) >= k then b_n(k) = b_n(k+1) - k otherwise b_n(k) = b_n(k+1) + k; a(n) = b_n(1).

Table of values

List of values

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

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

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