A048647 - cp's OEIS frontend

A048647 Write n in base 4, then replace each digit '1' with '3' and vice versa and convert back to decimal.

n	a(n)
0	0
1	3
2	2
3	1
4	12
5	15
6	14
7	13
8	8
9	11
10	10
11	9
12	4
13	7
14	6
15	5
16	48
17	51
18	50
19	49
20	60
21	63
22	62
23	61
24	56
25	59
26	58
27	57
28	52
29	55
30	54
31	53
32	32
33	35
34	34
35	33
36	44
37	47
38	46
39	45
40	40
41	43
42	42
43	41
44	36
45	39
46	38
47	37
48	16
49	19
50	18
51	17
52	28
53	31
54	30
55	29
56	24
57	27
58	26
59	25
60	20
61	23
62	22
63	21
64	192
65	195
66	194
67	193
68	204
69	207
70	206

[0, 3, 2, 1, 12, 15, 14, 13, 8, 11, 10, 9, 4, 7, 6, 5, 48, 51, 50, 49, 60, 63, 62, 61, 56, 59, 58, 57, 52, 55, 54, 53, 32, 35, 34, 33, 44, 47, 46, 45, 40, 43, 42, 41, 36, 39, 38, 37, 16, 19, 18, 17, 28, 31, 30, 29, 24, 27, 26, 25, 20, 23, 22, 21, 192, 195, 194, 193, 204, 207, 206]

cp's OEIS Frontend

A048647 Write n in base 4, then replace each digit '1' with '3' and vice versa and convert back to decimal.

Table of values

List of values

n	a(n)
0	0
1	3
2	2
3	1
4	12
5	15
6	14
7	13
8	8
9	11
10	10
11	9
12	4
13	7
14	6
15	5
16	48
17	51
18	50
19	49
20	60
21	63
22	62
23	61
24	56
25	59
26	58
27	57
28	52
29	55
30	54
31	53
32	32
33	35
34	34
35	33
36	44
37	47
38	46
39	45
40	40
41	43
42	42
43	41
44	36
45	39
46	38
47	37
48	16
49	19
50	18
51	17
52	28
53	31
54	30
55	29
56	24
57	27
58	26
59	25
60	20
61	23
62	22
63	21
64	192
65	195
66	194
67	193
68	204
69	207
70	206

n	a(n)
0	0
1	3
2	2
3	1
4	12
5	15
6	14
7	13
8	8
9	11
10	10
11	9
12	4
13	7
14	6
15	5
16	48
17	51
18	50
19	49
20	60
21	63
22	62
23	61
24	56
25	59
26	58
27	57
28	52
29	55
30	54
31	53
32	32
33	35
34	34
35	33
36	44
37	47
38	46
39	45
40	40
41	43
42	42
43	41
44	36
45	39
46	38
47	37
48	16
49	19
50	18
51	17
52	28
53	31
54	30
55	29
56	24
57	27
58	26
59	25
60	20
61	23
62	22
63	21
64	192
65	195
66	194
67	193
68	204
69	207
70	206

n	a(n)
0	0
1	3
2	2
3	1
4	12
5	15
6	14
7	13
8	8
9	11
10	10
11	9
12	4
13	7
14	6
15	5
16	48
17	51
18	50
19	49
20	60
21	63
22	62
23	61
24	56
25	59
26	58
27	57
28	52
29	55
30	54
31	53
32	32
33	35
34	34
35	33
36	44
37	47
38	46
39	45
40	40
41	43
42	42
43	41
44	36
45	39
46	38
47	37
48	16
49	19
50	18
51	17
52	28
53	31
54	30
55	29
56	24
57	27
58	26
59	25
60	20
61	23
62	22
63	21
64	192
65	195
66	194
67	193
68	204
69	207
70	206