A010061 - cp's OEIS frontend

A010061 Binary self or Colombian numbers: numbers that cannot be expressed as the sum of distinct terms of the form 2^k+1 (k>=0), or equivalently, numbers not of form m + sum of binary digits of m.

n	a(n)
1	1
2	4
3	6
4	13
5	15
6	18
7	21
8	23
9	30
10	32
11	37
12	39
13	46
14	48
15	51
16	54
17	56
18	63
19	71
20	78
21	80
22	83
23	86
24	88
25	95
26	97
27	102
28	104
29	111
30	113
31	116
32	119
33	121
34	128
35	130
36	133
37	135
38	142
39	144
40	147
41	150
42	152
43	159
44	161
45	166
46	168
47	175
48	177
49	180
50	183
51	185
52	192
53	200
54	207
55	209
56	212
57	215
58	217

[1, 4, 6, 13, 15, 18, 21, 23, 30, 32, 37, 39, 46, 48, 51, 54, 56, 63, 71, 78, 80, 83, 86, 88, 95, 97, 102, 104, 111, 113, 116, 119, 121, 128, 130, 133, 135, 142, 144, 147, 150, 152, 159, 161, 166, 168, 175, 177, 180, 183, 185, 192, 200, 207, 209, 212, 215, 217]

cp's OEIS Frontend

A010061 Binary self or Colombian numbers: numbers that cannot be expressed as the sum of distinct terms of the form 2^k+1 (k>=0), or equivalently, numbers not of form m + sum of binary digits of m.

Table of values

List of values

n	a(n)
1	1
2	4
3	6
4	13
5	15
6	18
7	21
8	23
9	30
10	32
11	37
12	39
13	46
14	48
15	51
16	54
17	56
18	63
19	71
20	78
21	80
22	83
23	86
24	88
25	95
26	97
27	102
28	104
29	111
30	113
31	116
32	119
33	121
34	128
35	130
36	133
37	135
38	142
39	144
40	147
41	150
42	152
43	159
44	161
45	166
46	168
47	175
48	177
49	180
50	183
51	185
52	192
53	200
54	207
55	209
56	212
57	215
58	217

n	a(n)
1	1
2	4
3	6
4	13
5	15
6	18
7	21
8	23
9	30
10	32
11	37
12	39
13	46
14	48
15	51
16	54
17	56
18	63
19	71
20	78
21	80
22	83
23	86
24	88
25	95
26	97
27	102
28	104
29	111
30	113
31	116
32	119
33	121
34	128
35	130
36	133
37	135
38	142
39	144
40	147
41	150
42	152
43	159
44	161
45	166
46	168
47	175
48	177
49	180
50	183
51	185
52	192
53	200
54	207
55	209
56	212
57	215
58	217

n	a(n)
1	1
2	4
3	6
4	13
5	15
6	18
7	21
8	23
9	30
10	32
11	37
12	39
13	46
14	48
15	51
16	54
17	56
18	63
19	71
20	78
21	80
22	83
23	86
24	88
25	95
26	97
27	102
28	104
29	111
30	113
31	116
32	119
33	121
34	128
35	130
36	133
37	135
38	142
39	144
40	147
41	150
42	152
43	159
44	161
45	166
46	168
47	175
48	177
49	180
50	183
51	185
52	192
53	200
54	207
55	209
56	212
57	215
58	217