A283977 - cp's OEIS frontend

A283977 a(2n) = A002487(n), a(2n+1) = A002487(n) XOR A002487(n+1), where XOR is bitwise-xor (A003987).

n	a(n)
0	0
1	1
2	1
3	0
4	1
5	3
6	2
7	3
8	1
9	2
10	3
11	1
12	2
13	1
14	3
15	2
16	1
17	5
18	4
19	7
20	3
21	6
22	5
23	7
24	2
25	7
26	5
27	6
28	3
29	7
30	4
31	5
32	1
33	4
34	5
35	1
36	4
37	3
38	7
39	4
40	3
41	11
42	8
43	13
44	5
45	2
46	7
47	5
48	2
49	5
50	7
51	2
52	5
53	13
54	8
55	11
56	3
57	4
58	7
59	3
60	4
61	1
62	5
63	4
64	1
65	7
66	6
67	3
68	5
69	12
70	9
71	13
72	4
73	15
74	11
75	12
76	7
77	13
78	10
79	9
80	3
81	8
82	11
83	3
84	8
85	5
86	13
87	8
88	5
89	9
90	12
91	11
92	7
93	14
94	9
95	11
96	2
97	11
98	9
99	14
100	7
101	11
102	12
103	9
104	5
105	8
106	13
107	5
108	8
109	3
110	11
111	8
112	3

[0, 1, 1, 0, 1, 3, 2, 3, 1, 2, 3, 1, 2, 1, 3, 2, 1, 5, 4, 7, 3, 6, 5, 7, 2, 7, 5, 6, 3, 7, 4, 5, 1, 4, 5, 1, 4, 3, 7, 4, 3, 11, 8, 13, 5, 2, 7, 5, 2, 5, 7, 2, 5, 13, 8, 11, 3, 4, 7, 3, 4, 1, 5, 4, 1, 7, 6, 3, 5, 12, 9, 13, 4, 15, 11, 12, 7, 13, 10, 9, 3, 8, 11, 3, 8, 5, 13, 8, 5, 9, 12, 11, 7, 14, 9, 11, 2, 11, 9, 14, 7, 11, 12, 9, 5, 8, 13, 5, 8, 3, 11, 8, 3]

cp's OEIS Frontend

A283977 a(2n) = A002487(n), a(2n+1) = A002487(n) XOR A002487(n+1), where XOR is bitwise-xor (A003987).

Table of values

List of values

n	a(n)
0	0
1	1
2	1
3	0
4	1
5	3
6	2
7	3
8	1
9	2
10	3
11	1
12	2
13	1
14	3
15	2
16	1
17	5
18	4
19	7
20	3
21	6
22	5
23	7
24	2
25	7
26	5
27	6
28	3
29	7
30	4
31	5
32	1
33	4
34	5
35	1
36	4
37	3
38	7
39	4
40	3
41	11
42	8
43	13
44	5
45	2
46	7
47	5
48	2
49	5
50	7
51	2
52	5
53	13
54	8
55	11
56	3
57	4
58	7
59	3
60	4
61	1
62	5
63	4
64	1
65	7
66	6
67	3
68	5
69	12
70	9
71	13
72	4
73	15
74	11
75	12
76	7
77	13
78	10
79	9
80	3
81	8
82	11
83	3
84	8
85	5
86	13
87	8
88	5
89	9
90	12
91	11
92	7
93	14
94	9
95	11
96	2
97	11
98	9
99	14
100	7
101	11
102	12
103	9
104	5
105	8
106	13
107	5
108	8
109	3
110	11
111	8
112	3

n	a(n)
0	0
1	1
2	1
3	0
4	1
5	3
6	2
7	3
8	1
9	2
10	3
11	1
12	2
13	1
14	3
15	2
16	1
17	5
18	4
19	7
20	3
21	6
22	5
23	7
24	2
25	7
26	5
27	6
28	3
29	7
30	4
31	5
32	1
33	4
34	5
35	1
36	4
37	3
38	7
39	4
40	3
41	11
42	8
43	13
44	5
45	2
46	7
47	5
48	2
49	5
50	7
51	2
52	5
53	13
54	8
55	11
56	3
57	4
58	7
59	3
60	4
61	1
62	5
63	4
64	1
65	7
66	6
67	3
68	5
69	12
70	9
71	13
72	4
73	15
74	11
75	12
76	7
77	13
78	10
79	9
80	3
81	8
82	11
83	3
84	8
85	5
86	13
87	8
88	5
89	9
90	12
91	11
92	7
93	14
94	9
95	11
96	2
97	11
98	9
99	14
100	7
101	11
102	12
103	9
104	5
105	8
106	13
107	5
108	8
109	3
110	11
111	8
112	3

n	a(n)
0	0
1	1
2	1
3	0
4	1
5	3
6	2
7	3
8	1
9	2
10	3
11	1
12	2
13	1
14	3
15	2
16	1
17	5
18	4
19	7
20	3
21	6
22	5
23	7
24	2
25	7
26	5
27	6
28	3
29	7
30	4
31	5
32	1
33	4
34	5
35	1
36	4
37	3
38	7
39	4
40	3
41	11
42	8
43	13
44	5
45	2
46	7
47	5
48	2
49	5
50	7
51	2
52	5
53	13
54	8
55	11
56	3
57	4
58	7
59	3
60	4
61	1
62	5
63	4
64	1
65	7
66	6
67	3
68	5
69	12
70	9
71	13
72	4
73	15
74	11
75	12
76	7
77	13
78	10
79	9
80	3
81	8
82	11
83	3
84	8
85	5
86	13
87	8
88	5
89	9
90	12
91	11
92	7
93	14
94	9
95	11
96	2
97	11
98	9
99	14
100	7
101	11
102	12
103	9
104	5
105	8
106	13
107	5
108	8
109	3
110	11
111	8
112	3