A337821 - cp's OEIS frontend

A337821 For n >= 0, a(4n+1) = 0, a(4n+3) = a(2n+1) + 1, a(2n+2) = a(n+1).

n	a(n)
1	0
2	0
3	1
4	0
5	0
6	1
7	2
8	0
9	0
10	0
11	1
12	1
13	0
14	2
15	3
16	0
17	0
18	0
19	1
20	0
21	0
22	1
23	2
24	1
25	0
26	0
27	1
28	2
29	0
30	3
31	4
32	0
33	0
34	0
35	1
36	0
37	0
38	1
39	2
40	0
41	0
42	0
43	1
44	1
45	0
46	2
47	3
48	1
49	0
50	0
51	1
52	0
53	0
54	1
55	2
56	2
57	0
58	0
59	1
60	3
61	0
62	4
63	5
64	0
65	0
66	0
67	1
68	0
69	0
70	1
71	2
72	0
73	0
74	0
75	1
76	1
77	0
78	2
79	3
80	0
81	0
82	0
83	1
84	0
85	0
86	1
87	2
88	1
89	0
90	0
91	1
92	2
93	0
94	3
95	4
96	1

[0, 0, 1, 0, 0, 1, 2, 0, 0, 0, 1, 1, 0, 2, 3, 0, 0, 0, 1, 0, 0, 1, 2, 1, 0, 0, 1, 2, 0, 3, 4, 0, 0, 0, 1, 0, 0, 1, 2, 0, 0, 0, 1, 1, 0, 2, 3, 1, 0, 0, 1, 0, 0, 1, 2, 2, 0, 0, 1, 3, 0, 4, 5, 0, 0, 0, 1, 0, 0, 1, 2, 0, 0, 0, 1, 1, 0, 2, 3, 0, 0, 0, 1, 0, 0, 1, 2, 1, 0, 0, 1, 2, 0, 3, 4, 1]

cp's OEIS Frontend

A337821 For n >= 0, a(4n+1) = 0, a(4n+3) = a(2n+1) + 1, a(2n+2) = a(n+1).

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	0
5	0
6	1
7	2
8	0
9	0
10	0
11	1
12	1
13	0
14	2
15	3
16	0
17	0
18	0
19	1
20	0
21	0
22	1
23	2
24	1
25	0
26	0
27	1
28	2
29	0
30	3
31	4
32	0
33	0
34	0
35	1
36	0
37	0
38	1
39	2
40	0
41	0
42	0
43	1
44	1
45	0
46	2
47	3
48	1
49	0
50	0
51	1
52	0
53	0
54	1
55	2
56	2
57	0
58	0
59	1
60	3
61	0
62	4
63	5
64	0
65	0
66	0
67	1
68	0
69	0
70	1
71	2
72	0
73	0
74	0
75	1
76	1
77	0
78	2
79	3
80	0
81	0
82	0
83	1
84	0
85	0
86	1
87	2
88	1
89	0
90	0
91	1
92	2
93	0
94	3
95	4
96	1

n	a(n)
1	0
2	0
3	1
4	0
5	0
6	1
7	2
8	0
9	0
10	0
11	1
12	1
13	0
14	2
15	3
16	0
17	0
18	0
19	1
20	0
21	0
22	1
23	2
24	1
25	0
26	0
27	1
28	2
29	0
30	3
31	4
32	0
33	0
34	0
35	1
36	0
37	0
38	1
39	2
40	0
41	0
42	0
43	1
44	1
45	0
46	2
47	3
48	1
49	0
50	0
51	1
52	0
53	0
54	1
55	2
56	2
57	0
58	0
59	1
60	3
61	0
62	4
63	5
64	0
65	0
66	0
67	1
68	0
69	0
70	1
71	2
72	0
73	0
74	0
75	1
76	1
77	0
78	2
79	3
80	0
81	0
82	0
83	1
84	0
85	0
86	1
87	2
88	1
89	0
90	0
91	1
92	2
93	0
94	3
95	4
96	1

n	a(n)
1	0
2	0
3	1
4	0
5	0
6	1
7	2
8	0
9	0
10	0
11	1
12	1
13	0
14	2
15	3
16	0
17	0
18	0
19	1
20	0
21	0
22	1
23	2
24	1
25	0
26	0
27	1
28	2
29	0
30	3
31	4
32	0
33	0
34	0
35	1
36	0
37	0
38	1
39	2
40	0
41	0
42	0
43	1
44	1
45	0
46	2
47	3
48	1
49	0
50	0
51	1
52	0
53	0
54	1
55	2
56	2
57	0
58	0
59	1
60	3
61	0
62	4
63	5
64	0
65	0
66	0
67	1
68	0
69	0
70	1
71	2
72	0
73	0
74	0
75	1
76	1
77	0
78	2
79	3
80	0
81	0
82	0
83	1
84	0
85	0
86	1
87	2
88	1
89	0
90	0
91	1
92	2
93	0
94	3
95	4
96	1