A351887 - cp's OEIS frontend

A351887 a(n) is the number of k < n such that a(k) AND n = a(k) (where AND denotes the bitwise AND operator).

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

[0, 1, 1, 3, 1, 4, 2, 7, 1, 5, 2, 8, 3, 8, 6, 15, 1, 6, 3, 11, 2, 8, 7, 18, 4, 9, 8, 19, 7, 14, 14, 31, 1, 7, 4, 13, 4, 12, 10, 24, 5, 12, 9, 21, 11, 22, 19, 40, 1, 8, 5, 17, 5, 18, 13, 35, 8, 19, 15, 34, 15, 32, 28, 63, 1, 9, 4, 15, 6, 18, 12, 31, 7, 18, 11]

cp's OEIS Frontend

A351887 a(n) is the number of k < n such that a(k) AND n = a(k) (where AND denotes the bitwise AND operator).

Table of values

List of values

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

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

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