A300948 - cp's OEIS frontend

A300948 a(1) = 2, a(2) = 1, and for any n > 2 with binary expansion Sum_{i=0..k} b_i * 2^i, a(n) = Sum_{i=0..k} b_i * 2^(a(i+1)-1).

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

[2, 1, 3, 4, 6, 5, 7, 8, 10, 9, 11, 12, 14, 13, 15, 32, 34, 33, 35, 36, 38, 37, 39, 40, 42, 41, 43, 44, 46, 45, 47, 16, 18, 17, 19, 20, 22, 21, 23, 24, 26, 25, 27, 28, 30, 29, 31, 48, 50, 49, 51, 52, 54, 53, 55, 56, 58, 57, 59, 60, 62, 61, 63, 64, 66, 65, 67]

cp's OEIS Frontend

A300948 a(1) = 2, a(2) = 1, and for any n > 2 with binary expansion Sum_{i=0..k} b_i * 2^i, a(n) = Sum_{i=0..k} b_i * 2^(a(i+1)-1).

Table of values

List of values

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

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

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