A333943 - cp's OEIS frontend

A333943 Numbers k such that the k-th composition in standard order is a reversed necklace.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	10
10	11
11	15
12	16
13	17
14	18
15	19
16	21
17	23
18	31
19	32
20	33
21	34
22	35
23	36
24	37
25	39
26	41
27	42
28	43
29	45
30	47
31	63
32	64
33	65
34	66
35	67
36	68
37	69
38	71
39	73
40	74
41	75
42	77
43	79
44	81
45	83
46	85
47	87
48	91
49	95
50	127
51	128
52	129
53	130
54	131
55	132
56	133
57	135
58	136
59	137
60	138
61	139
62	141
63	143

[1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 15, 16, 17, 18, 19, 21, 23, 31, 32, 33, 34, 35, 36, 37, 39, 41, 42, 43, 45, 47, 63, 64, 65, 66, 67, 68, 69, 71, 73, 74, 75, 77, 79, 81, 83, 85, 87, 91, 95, 127, 128, 129, 130, 131, 132, 133, 135, 136, 137, 138, 139, 141, 143]

cp's OEIS Frontend

A333943 Numbers k such that the k-th composition in standard order is a reversed necklace.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	10
10	11
11	15
12	16
13	17
14	18
15	19
16	21
17	23
18	31
19	32
20	33
21	34
22	35
23	36
24	37
25	39
26	41
27	42
28	43
29	45
30	47
31	63
32	64
33	65
34	66
35	67
36	68
37	69
38	71
39	73
40	74
41	75
42	77
43	79
44	81
45	83
46	85
47	87
48	91
49	95
50	127
51	128
52	129
53	130
54	131
55	132
56	133
57	135
58	136
59	137
60	138
61	139
62	141
63	143

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	10
10	11
11	15
12	16
13	17
14	18
15	19
16	21
17	23
18	31
19	32
20	33
21	34
22	35
23	36
24	37
25	39
26	41
27	42
28	43
29	45
30	47
31	63
32	64
33	65
34	66
35	67
36	68
37	69
38	71
39	73
40	74
41	75
42	77
43	79
44	81
45	83
46	85
47	87
48	91
49	95
50	127
51	128
52	129
53	130
54	131
55	132
56	133
57	135
58	136
59	137
60	138
61	139
62	141
63	143

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	10
10	11
11	15
12	16
13	17
14	18
15	19
16	21
17	23
18	31
19	32
20	33
21	34
22	35
23	36
24	37
25	39
26	41
27	42
28	43
29	45
30	47
31	63
32	64
33	65
34	66
35	67
36	68
37	69
38	71
39	73
40	74
41	75
42	77
43	79
44	81
45	83
46	85
47	87
48	91
49	95
50	127
51	128
52	129
53	130
54	131
55	132
56	133
57	135
58	136
59	137
60	138
61	139
62	141
63	143