A338209 - cp's OEIS frontend

A338209 a(1) = 1, a(n) is the least m not already in the sequence whose binary expansion ends with the binary expansion of the binary weight of a(n-1).

n	a(n)
1	1
2	3
3	2
4	5
5	6
6	10
7	14
8	7
9	11
10	15
11	4
12	9
13	18
14	22
15	19
16	23
17	12
18	26
19	27
20	20
21	30
22	28
23	31
24	13
25	35
26	39
27	36
28	34
29	38
30	43
31	44
32	47
33	21
34	51
35	52
36	55
37	29
38	60
39	68
40	42
41	59
42	37
43	63
44	46
45	76
46	67
47	71
48	84
49	75
50	92
51	100
52	79
53	45
54	108
55	116
56	124
57	53
58	132
59	50
60	83
61	140
62	87
63	61
64	69
65	91
66	77

[1, 3, 2, 5, 6, 10, 14, 7, 11, 15, 4, 9, 18, 22, 19, 23, 12, 26, 27, 20, 30, 28, 31, 13, 35, 39, 36, 34, 38, 43, 44, 47, 21, 51, 52, 55, 29, 60, 68, 42, 59, 37, 63, 46, 76, 67, 71, 84, 75, 92, 100, 79, 45, 108, 116, 124, 53, 132, 50, 83, 140, 87, 61, 69, 91, 77]

cp's OEIS Frontend

A338209 a(1) = 1, a(n) is the least m not already in the sequence whose binary expansion ends with the binary expansion of the binary weight of a(n-1).

Table of values

List of values

n	a(n)
1	1
2	3
3	2
4	5
5	6
6	10
7	14
8	7
9	11
10	15
11	4
12	9
13	18
14	22
15	19
16	23
17	12
18	26
19	27
20	20
21	30
22	28
23	31
24	13
25	35
26	39
27	36
28	34
29	38
30	43
31	44
32	47
33	21
34	51
35	52
36	55
37	29
38	60
39	68
40	42
41	59
42	37
43	63
44	46
45	76
46	67
47	71
48	84
49	75
50	92
51	100
52	79
53	45
54	108
55	116
56	124
57	53
58	132
59	50
60	83
61	140
62	87
63	61
64	69
65	91
66	77

n	a(n)
1	1
2	3
3	2
4	5
5	6
6	10
7	14
8	7
9	11
10	15
11	4
12	9
13	18
14	22
15	19
16	23
17	12
18	26
19	27
20	20
21	30
22	28
23	31
24	13
25	35
26	39
27	36
28	34
29	38
30	43
31	44
32	47
33	21
34	51
35	52
36	55
37	29
38	60
39	68
40	42
41	59
42	37
43	63
44	46
45	76
46	67
47	71
48	84
49	75
50	92
51	100
52	79
53	45
54	108
55	116
56	124
57	53
58	132
59	50
60	83
61	140
62	87
63	61
64	69
65	91
66	77

n	a(n)
1	1
2	3
3	2
4	5
5	6
6	10
7	14
8	7
9	11
10	15
11	4
12	9
13	18
14	22
15	19
16	23
17	12
18	26
19	27
20	20
21	30
22	28
23	31
24	13
25	35
26	39
27	36
28	34
29	38
30	43
31	44
32	47
33	21
34	51
35	52
36	55
37	29
38	60
39	68
40	42
41	59
42	37
43	63
44	46
45	76
46	67
47	71
48	84
49	75
50	92
51	100
52	79
53	45
54	108
55	116
56	124
57	53
58	132
59	50
60	83
61	140
62	87
63	61
64	69
65	91
66	77