A147755 - cp's OEIS frontend

A147755 a(n) = the largest integer that, when represented in binary, occurs at least twice as a substring in the binary representation of n.

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

[1, 0, 1, 1, 3, 0, 1, 2, 1, 1, 1, 3, 7, 0, 1, 2, 1, 2, 5, 2, 3, 1, 1, 2, 3, 3, 3, 7, 15, 0, 1, 2, 1, 4, 2, 2, 3, 2, 2, 10, 5, 2, 5, 3, 7, 1, 1, 2, 3, 2, 5, 6, 3, 3, 3, 3, 3, 7, 7, 15, 31, 0, 1, 2, 1, 4, 2, 2, 3, 4, 9, 2, 2, 4, 2, 3, 7, 2, 2, 2, 2, 10, 21, 5, 5, 2, 2, 5, 11, 3, 5, 7, 15, 1, 1, 2, 3, 4, 2, 6, 3, 2]

cp's OEIS Frontend

A147755 a(n) = the largest integer that, when represented in binary, occurs at least twice as a substring in the binary representation of n.

Table of values

List of values

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

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

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