A381624 - cp's OEIS frontend

A381624 For any nonnegative integer n with ternary expansion Sum_{k >= 0} t_k * 3^k, a(n) = Sum_{k >= 0} t_k * (2^(k+1) - 1).

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

[0, 1, 2, 3, 4, 5, 6, 7, 8, 7, 8, 9, 10, 11, 12, 13, 14, 15, 14, 15, 16, 17, 18, 19, 20, 21, 22, 15, 16, 17, 18, 19, 20, 21, 22, 23, 22, 23, 24, 25, 26, 27, 28, 29, 30, 29, 30, 31, 32, 33, 34, 35, 36, 37, 30, 31, 32, 33, 34, 35, 36, 37, 38, 37, 38, 39, 40, 41]

cp's OEIS Frontend

A381624 For any nonnegative integer n with ternary expansion Sum_{k >= 0} t_k * 3^k, a(n) = Sum_{k >= 0} t_k * (2^(k+1) - 1).

Table of values

List of values

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

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

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