A331173 - cp's OEIS frontend

A331173 a(n) = min(n, A263273(n)), where A263273 is bijective base-3 reverse.

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	5
8	8
9	9
10	10
11	11
12	12
13	13
14	14
15	15
16	16
17	17
18	18
19	11
20	20
21	15
22	14
23	23
24	24
25	17
26	26
27	27
28	28
29	29
30	30
31	31
32	32
33	33
34	34
35	35
36	36
37	31
38	38
39	39
40	40
41	41
42	42
43	43
44	44
45	45
46	34
47	47
48	48
49	43
50	50
51	51
52	52
53	53
54	54
55	29
56	56
57	33
58	38
59	59
60	60
61	47
62	62
63	45
64	32
65	59
66	42
67	41
68	68
69	69
70	50
71	71
72	72
73	35
74	62
75	51
76	44
77	71
78	78
79	53
80	80
81	81

[0, 1, 2, 3, 4, 5, 6, 5, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 11, 20, 15, 14, 23, 24, 17, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 31, 38, 39, 40, 41, 42, 43, 44, 45, 34, 47, 48, 43, 50, 51, 52, 53, 54, 29, 56, 33, 38, 59, 60, 47, 62, 45, 32, 59, 42, 41, 68, 69, 50, 71, 72, 35, 62, 51, 44, 71, 78, 53, 80, 81]

cp's OEIS Frontend

A331173 a(n) = min(n, A263273(n)), where A263273 is bijective base-3 reverse.

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	5
8	8
9	9
10	10
11	11
12	12
13	13
14	14
15	15
16	16
17	17
18	18
19	11
20	20
21	15
22	14
23	23
24	24
25	17
26	26
27	27
28	28
29	29
30	30
31	31
32	32
33	33
34	34
35	35
36	36
37	31
38	38
39	39
40	40
41	41
42	42
43	43
44	44
45	45
46	34
47	47
48	48
49	43
50	50
51	51
52	52
53	53
54	54
55	29
56	56
57	33
58	38
59	59
60	60
61	47
62	62
63	45
64	32
65	59
66	42
67	41
68	68
69	69
70	50
71	71
72	72
73	35
74	62
75	51
76	44
77	71
78	78
79	53
80	80
81	81

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	5
8	8
9	9
10	10
11	11
12	12
13	13
14	14
15	15
16	16
17	17
18	18
19	11
20	20
21	15
22	14
23	23
24	24
25	17
26	26
27	27
28	28
29	29
30	30
31	31
32	32
33	33
34	34
35	35
36	36
37	31
38	38
39	39
40	40
41	41
42	42
43	43
44	44
45	45
46	34
47	47
48	48
49	43
50	50
51	51
52	52
53	53
54	54
55	29
56	56
57	33
58	38
59	59
60	60
61	47
62	62
63	45
64	32
65	59
66	42
67	41
68	68
69	69
70	50
71	71
72	72
73	35
74	62
75	51
76	44
77	71
78	78
79	53
80	80
81	81

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	5
8	8
9	9
10	10
11	11
12	12
13	13
14	14
15	15
16	16
17	17
18	18
19	11
20	20
21	15
22	14
23	23
24	24
25	17
26	26
27	27
28	28
29	29
30	30
31	31
32	32
33	33
34	34
35	35
36	36
37	31
38	38
39	39
40	40
41	41
42	42
43	43
44	44
45	45
46	34
47	47
48	48
49	43
50	50
51	51
52	52
53	53
54	54
55	29
56	56
57	33
58	38
59	59
60	60
61	47
62	62
63	45
64	32
65	59
66	42
67	41
68	68
69	69
70	50
71	71
72	72
73	35
74	62
75	51
76	44
77	71
78	78
79	53
80	80
81	81