A338478 - cp's OEIS frontend

A338478 Let b be an odd function such that b(0) = 0, b(1) = 1, and for any n > 1 such that 3^x < 2*n < 3^(x+1) for some x > 0, b(n) = b(3^x-n) - 3^x; a(n) = abs(b(n)) for any n >= 0.

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	13
6	12
7	11
8	8
9	9
10	10
11	7
12	6
13	5
14	32
15	33
16	34
17	37
18	36
19	35
20	38
21	39
22	40
23	31
24	30
25	29
26	26
27	27
28	28
29	25
30	24
31	23
32	14
33	15
34	16
35	19
36	18
37	17
38	20
39	21
40	22
41	103
42	102
43	101
44	98
45	99
46	100
47	97
48	96
49	95
50	104
51	105
52	106
53	109
54	108
55	107
56	110
57	111
58	112
59	121
60	120
61	119
62	116

[0, 1, 2, 3, 4, 13, 12, 11, 8, 9, 10, 7, 6, 5, 32, 33, 34, 37, 36, 35, 38, 39, 40, 31, 30, 29, 26, 27, 28, 25, 24, 23, 14, 15, 16, 19, 18, 17, 20, 21, 22, 103, 102, 101, 98, 99, 100, 97, 96, 95, 104, 105, 106, 109, 108, 107, 110, 111, 112, 121, 120, 119, 116]

cp's OEIS Frontend

A338478 Let b be an odd function such that b(0) = 0, b(1) = 1, and for any n > 1 such that 3^x < 2*n < 3^(x+1) for some x > 0, b(n) = b(3^x-n) - 3^x; a(n) = abs(b(n)) for any n >= 0.

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	13
6	12
7	11
8	8
9	9
10	10
11	7
12	6
13	5
14	32
15	33
16	34
17	37
18	36
19	35
20	38
21	39
22	40
23	31
24	30
25	29
26	26
27	27
28	28
29	25
30	24
31	23
32	14
33	15
34	16
35	19
36	18
37	17
38	20
39	21
40	22
41	103
42	102
43	101
44	98
45	99
46	100
47	97
48	96
49	95
50	104
51	105
52	106
53	109
54	108
55	107
56	110
57	111
58	112
59	121
60	120
61	119
62	116

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	13
6	12
7	11
8	8
9	9
10	10
11	7
12	6
13	5
14	32
15	33
16	34
17	37
18	36
19	35
20	38
21	39
22	40
23	31
24	30
25	29
26	26
27	27
28	28
29	25
30	24
31	23
32	14
33	15
34	16
35	19
36	18
37	17
38	20
39	21
40	22
41	103
42	102
43	101
44	98
45	99
46	100
47	97
48	96
49	95
50	104
51	105
52	106
53	109
54	108
55	107
56	110
57	111
58	112
59	121
60	120
61	119
62	116

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	13
6	12
7	11
8	8
9	9
10	10
11	7
12	6
13	5
14	32
15	33
16	34
17	37
18	36
19	35
20	38
21	39
22	40
23	31
24	30
25	29
26	26
27	27
28	28
29	25
30	24
31	23
32	14
33	15
34	16
35	19
36	18
37	17
38	20
39	21
40	22
41	103
42	102
43	101
44	98
45	99
46	100
47	97
48	96
49	95
50	104
51	105
52	106
53	109
54	108
55	107
56	110
57	111
58	112
59	121
60	120
61	119
62	116