A180059 - cp's OEIS frontend

A180059 Smallest k such that binary weight of k*n is less than binary weight of k, or zero if no such k exists (for n = powers of 2).

n	a(n)
1	0
2	0
3	11
4	0
5	13
6	11
7	23
8	0
9	29
10	13
11	47
12	11
13	79
14	23
15	47
16	0
17	61
18	29
19	27
20	13
21	55
22	47
23	23
24	11
25	41
26	79
27	19
28	23
29	53
30	47
31	95
32	0
33	125
34	61
35	59
36	29
37	111
38	27
39	55
40	13
41	25
42	55
43	143
44	47
45	47
46	23
47	47
48	11
49	209
50	41
51	91
52	79
53	29
54	19
55	149
56	23
57	575
58	53
59	139
60	47
61	277
62	95
63	191
64	0
65	253
66	125
67	107
68	61

[0, 0, 11, 0, 13, 11, 23, 0, 29, 13, 47, 11, 79, 23, 47, 0, 61, 29, 27, 13, 55, 47, 23, 11, 41, 79, 19, 23, 53, 47, 95, 0, 125, 61, 59, 29, 111, 27, 55, 13, 25, 55, 143, 47, 47, 23, 47, 11, 209, 41, 91, 79, 29, 19, 149, 23, 575, 53, 139, 47, 277, 95, 191, 0, 253, 125, 107, 61]

cp's OEIS Frontend

A180059 Smallest k such that binary weight of k*n is less than binary weight of k, or zero if no such k exists (for n = powers of 2).

Table of values

List of values

n	a(n)
1	0
2	0
3	11
4	0
5	13
6	11
7	23
8	0
9	29
10	13
11	47
12	11
13	79
14	23
15	47
16	0
17	61
18	29
19	27
20	13
21	55
22	47
23	23
24	11
25	41
26	79
27	19
28	23
29	53
30	47
31	95
32	0
33	125
34	61
35	59
36	29
37	111
38	27
39	55
40	13
41	25
42	55
43	143
44	47
45	47
46	23
47	47
48	11
49	209
50	41
51	91
52	79
53	29
54	19
55	149
56	23
57	575
58	53
59	139
60	47
61	277
62	95
63	191
64	0
65	253
66	125
67	107
68	61

n	a(n)
1	0
2	0
3	11
4	0
5	13
6	11
7	23
8	0
9	29
10	13
11	47
12	11
13	79
14	23
15	47
16	0
17	61
18	29
19	27
20	13
21	55
22	47
23	23
24	11
25	41
26	79
27	19
28	23
29	53
30	47
31	95
32	0
33	125
34	61
35	59
36	29
37	111
38	27
39	55
40	13
41	25
42	55
43	143
44	47
45	47
46	23
47	47
48	11
49	209
50	41
51	91
52	79
53	29
54	19
55	149
56	23
57	575
58	53
59	139
60	47
61	277
62	95
63	191
64	0
65	253
66	125
67	107
68	61

n	a(n)
1	0
2	0
3	11
4	0
5	13
6	11
7	23
8	0
9	29
10	13
11	47
12	11
13	79
14	23
15	47
16	0
17	61
18	29
19	27
20	13
21	55
22	47
23	23
24	11
25	41
26	79
27	19
28	23
29	53
30	47
31	95
32	0
33	125
34	61
35	59
36	29
37	111
38	27
39	55
40	13
41	25
42	55
43	143
44	47
45	47
46	23
47	47
48	11
49	209
50	41
51	91
52	79
53	29
54	19
55	149
56	23
57	575
58	53
59	139
60	47
61	277
62	95
63	191
64	0
65	253
66	125
67	107
68	61