A162215 - cp's OEIS frontend

A162215 a(n) is the smallest multiple of n that is greater than 2n and contains the same number of 1's in its binary representation as n contains.

n	a(n)
1	4
2	8
3	9
4	16
5	20
6	18
7	21
8	32
9	36
10	40
11	44
12	36
13	52
14	42
15	45
16	64
17	68
18	72
19	76
20	80
21	84
22	88
23	92
24	72
25	100
26	104
27	108
28	84
29	116
30	90
31	93
32	128
33	132
34	136
35	140
36	144
37	148
38	152
39	156
40	160
41	164
42	168
43	172
44	176
45	135
46	184
47	188
48	144
49	196
50	200
51	153
52	208
53	212
54	216
55	220
56	168
57	228
58	232
59	236

[4, 8, 9, 16, 20, 18, 21, 32, 36, 40, 44, 36, 52, 42, 45, 64, 68, 72, 76, 80, 84, 88, 92, 72, 100, 104, 108, 84, 116, 90, 93, 128, 132, 136, 140, 144, 148, 152, 156, 160, 164, 168, 172, 176, 135, 184, 188, 144, 196, 200, 153, 208, 212, 216, 220, 168, 228, 232, 236]

cp's OEIS Frontend

A162215 a(n) is the smallest multiple of n that is greater than 2n and contains the same number of 1's in its binary representation as n contains.

Table of values

List of values

n	a(n)
1	4
2	8
3	9
4	16
5	20
6	18
7	21
8	32
9	36
10	40
11	44
12	36
13	52
14	42
15	45
16	64
17	68
18	72
19	76
20	80
21	84
22	88
23	92
24	72
25	100
26	104
27	108
28	84
29	116
30	90
31	93
32	128
33	132
34	136
35	140
36	144
37	148
38	152
39	156
40	160
41	164
42	168
43	172
44	176
45	135
46	184
47	188
48	144
49	196
50	200
51	153
52	208
53	212
54	216
55	220
56	168
57	228
58	232
59	236

n	a(n)
1	4
2	8
3	9
4	16
5	20
6	18
7	21
8	32
9	36
10	40
11	44
12	36
13	52
14	42
15	45
16	64
17	68
18	72
19	76
20	80
21	84
22	88
23	92
24	72
25	100
26	104
27	108
28	84
29	116
30	90
31	93
32	128
33	132
34	136
35	140
36	144
37	148
38	152
39	156
40	160
41	164
42	168
43	172
44	176
45	135
46	184
47	188
48	144
49	196
50	200
51	153
52	208
53	212
54	216
55	220
56	168
57	228
58	232
59	236

n	a(n)
1	4
2	8
3	9
4	16
5	20
6	18
7	21
8	32
9	36
10	40
11	44
12	36
13	52
14	42
15	45
16	64
17	68
18	72
19	76
20	80
21	84
22	88
23	92
24	72
25	100
26	104
27	108
28	84
29	116
30	90
31	93
32	128
33	132
34	136
35	140
36	144
37	148
38	152
39	156
40	160
41	164
42	168
43	172
44	176
45	135
46	184
47	188
48	144
49	196
50	200
51	153
52	208
53	212
54	216
55	220
56	168
57	228
58	232
59	236