A283988 - cp's OEIS frontend

A283988 a(n) = A002487(n-1) AND A002487(n), where AND is bitwise-and (A004198).

n	a(n)
1	0
2	1
3	0
4	0
5	1
6	2
7	2
8	1
9	0
10	0
11	1
12	0
13	0
14	1
15	0
16	0
17	1
18	4
19	4
20	3
21	0
22	0
23	5
24	2
25	2
26	5
27	0
28	0
29	3
30	4
31	4
32	1
33	0
34	4
35	1
36	0
37	0
38	3
39	2
40	2
41	3
42	8
43	8
44	5
45	4
46	4
47	1
48	0
49	0
50	1
51	4
52	4
53	5
54	8
55	8
56	3
57	2
58	2
59	3
60	0
61	0
62	1
63	4
64	0
65	1
66	6
67	2
68	1
69	4
70	8
71	9
72	4
73	4
74	11
75	2
76	2
77	1
78	0
79	8
80	1
81	2
82	10
83	3
84	0
85	0
86	5
87	0
88	0
89	1
90	0
91	0
92	3
93	0
94	0
95	9
96	2
97	2
98	9
99	0
100	0
101	3
102	0
103	0
104	1
105	0
106	0
107	5
108	0
109	0
110	3
111	10
112	2
113	1
114	8
115	0
116	1
117	2
118	2
119	11
120	4

[0, 1, 0, 0, 1, 2, 2, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 4, 4, 3, 0, 0, 5, 2, 2, 5, 0, 0, 3, 4, 4, 1, 0, 4, 1, 0, 0, 3, 2, 2, 3, 8, 8, 5, 4, 4, 1, 0, 0, 1, 4, 4, 5, 8, 8, 3, 2, 2, 3, 0, 0, 1, 4, 0, 1, 6, 2, 1, 4, 8, 9, 4, 4, 11, 2, 2, 1, 0, 8, 1, 2, 10, 3, 0, 0, 5, 0, 0, 1, 0, 0, 3, 0, 0, 9, 2, 2, 9, 0, 0, 3, 0, 0, 1, 0, 0, 5, 0, 0, 3, 10, 2, 1, 8, 0, 1, 2, 2, 11, 4]

cp's OEIS Frontend

A283988 a(n) = A002487(n-1) AND A002487(n), where AND is bitwise-and (A004198).

Table of values

List of values

n	a(n)
1	0
2	1
3	0
4	0
5	1
6	2
7	2
8	1
9	0
10	0
11	1
12	0
13	0
14	1
15	0
16	0
17	1
18	4
19	4
20	3
21	0
22	0
23	5
24	2
25	2
26	5
27	0
28	0
29	3
30	4
31	4
32	1
33	0
34	4
35	1
36	0
37	0
38	3
39	2
40	2
41	3
42	8
43	8
44	5
45	4
46	4
47	1
48	0
49	0
50	1
51	4
52	4
53	5
54	8
55	8
56	3
57	2
58	2
59	3
60	0
61	0
62	1
63	4
64	0
65	1
66	6
67	2
68	1
69	4
70	8
71	9
72	4
73	4
74	11
75	2
76	2
77	1
78	0
79	8
80	1
81	2
82	10
83	3
84	0
85	0
86	5
87	0
88	0
89	1
90	0
91	0
92	3
93	0
94	0
95	9
96	2
97	2
98	9
99	0
100	0
101	3
102	0
103	0
104	1
105	0
106	0
107	5
108	0
109	0
110	3
111	10
112	2
113	1
114	8
115	0
116	1
117	2
118	2
119	11
120	4

n	a(n)
1	0
2	1
3	0
4	0
5	1
6	2
7	2
8	1
9	0
10	0
11	1
12	0
13	0
14	1
15	0
16	0
17	1
18	4
19	4
20	3
21	0
22	0
23	5
24	2
25	2
26	5
27	0
28	0
29	3
30	4
31	4
32	1
33	0
34	4
35	1
36	0
37	0
38	3
39	2
40	2
41	3
42	8
43	8
44	5
45	4
46	4
47	1
48	0
49	0
50	1
51	4
52	4
53	5
54	8
55	8
56	3
57	2
58	2
59	3
60	0
61	0
62	1
63	4
64	0
65	1
66	6
67	2
68	1
69	4
70	8
71	9
72	4
73	4
74	11
75	2
76	2
77	1
78	0
79	8
80	1
81	2
82	10
83	3
84	0
85	0
86	5
87	0
88	0
89	1
90	0
91	0
92	3
93	0
94	0
95	9
96	2
97	2
98	9
99	0
100	0
101	3
102	0
103	0
104	1
105	0
106	0
107	5
108	0
109	0
110	3
111	10
112	2
113	1
114	8
115	0
116	1
117	2
118	2
119	11
120	4

n	a(n)
1	0
2	1
3	0
4	0
5	1
6	2
7	2
8	1
9	0
10	0
11	1
12	0
13	0
14	1
15	0
16	0
17	1
18	4
19	4
20	3
21	0
22	0
23	5
24	2
25	2
26	5
27	0
28	0
29	3
30	4
31	4
32	1
33	0
34	4
35	1
36	0
37	0
38	3
39	2
40	2
41	3
42	8
43	8
44	5
45	4
46	4
47	1
48	0
49	0
50	1
51	4
52	4
53	5
54	8
55	8
56	3
57	2
58	2
59	3
60	0
61	0
62	1
63	4
64	0
65	1
66	6
67	2
68	1
69	4
70	8
71	9
72	4
73	4
74	11
75	2
76	2
77	1
78	0
79	8
80	1
81	2
82	10
83	3
84	0
85	0
86	5
87	0
88	0
89	1
90	0
91	0
92	3
93	0
94	0
95	9
96	2
97	2
98	9
99	0
100	0
101	3
102	0
103	0
104	1
105	0
106	0
107	5
108	0
109	0
110	3
111	10
112	2
113	1
114	8
115	0
116	1
117	2
118	2
119	11
120	4