A228237 - cp's OEIS frontend

A228237 Numbers n for which there exists such a natural number k > n that k + bitcount(k) = n + bitcount(n), where bitcount(k) (A000120) gives the number of 1's in binary representation of nonnegative integer k.

n	a(n)
1	3
2	11
3	14
4	15
5	19
6	27
7	29
8	31
9	35
10	43
11	46
12	47
13	51
14	59
15	62
16	67
17	75
18	78
19	79
20	83
21	91
22	93
23	95
24	99
25	107
26	110
27	111
28	115
29	123
30	124
31	125
32	126
33	127
34	131
35	139
36	142
37	143
38	147
39	155
40	157
41	159
42	163
43	171
44	174
45	175
46	179
47	187
48	190
49	195
50	203
51	206
52	207
53	211
54	219
55	221
56	223
57	227

[3, 11, 14, 15, 19, 27, 29, 31, 35, 43, 46, 47, 51, 59, 62, 67, 75, 78, 79, 83, 91, 93, 95, 99, 107, 110, 111, 115, 123, 124, 125, 126, 127, 131, 139, 142, 143, 147, 155, 157, 159, 163, 171, 174, 175, 179, 187, 190, 195, 203, 206, 207, 211, 219, 221, 223, 227]

cp's OEIS Frontend

A228237 Numbers n for which there exists such a natural number k > n that k + bitcount(k) = n + bitcount(n), where bitcount(k) (A000120) gives the number of 1's in binary representation of nonnegative integer k.

Table of values

List of values

n	a(n)
1	3
2	11
3	14
4	15
5	19
6	27
7	29
8	31
9	35
10	43
11	46
12	47
13	51
14	59
15	62
16	67
17	75
18	78
19	79
20	83
21	91
22	93
23	95
24	99
25	107
26	110
27	111
28	115
29	123
30	124
31	125
32	126
33	127
34	131
35	139
36	142
37	143
38	147
39	155
40	157
41	159
42	163
43	171
44	174
45	175
46	179
47	187
48	190
49	195
50	203
51	206
52	207
53	211
54	219
55	221
56	223
57	227

n	a(n)
1	3
2	11
3	14
4	15
5	19
6	27
7	29
8	31
9	35
10	43
11	46
12	47
13	51
14	59
15	62
16	67
17	75
18	78
19	79
20	83
21	91
22	93
23	95
24	99
25	107
26	110
27	111
28	115
29	123
30	124
31	125
32	126
33	127
34	131
35	139
36	142
37	143
38	147
39	155
40	157
41	159
42	163
43	171
44	174
45	175
46	179
47	187
48	190
49	195
50	203
51	206
52	207
53	211
54	219
55	221
56	223
57	227

n	a(n)
1	3
2	11
3	14
4	15
5	19
6	27
7	29
8	31
9	35
10	43
11	46
12	47
13	51
14	59
15	62
16	67
17	75
18	78
19	79
20	83
21	91
22	93
23	95
24	99
25	107
26	110
27	111
28	115
29	123
30	124
31	125
32	126
33	127
34	131
35	139
36	142
37	143
38	147
39	155
40	157
41	159
42	163
43	171
44	174
45	175
46	179
47	187
48	190
49	195
50	203
51	206
52	207
53	211
54	219
55	221
56	223
57	227