A303787 - cp's OEIS frontend

A303787 a(n) = Sum_{i=0..m} d(i)4^i, where Sum_{i=0..m} d(i)5^i is the base-5 representation of n.

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

[0, 1, 2, 3, 4, 4, 5, 6, 7, 8, 8, 9, 10, 11, 12, 12, 13, 14, 15, 16, 16, 17, 18, 19, 20, 16, 17, 18, 19, 20, 20, 21, 22, 23, 24, 24, 25, 26, 27, 28, 28, 29, 30, 31, 32, 32, 33, 34, 35, 36, 32, 33, 34, 35, 36, 36, 37, 38, 39, 40, 40, 41, 42, 43, 44, 44, 45, 46, 47, 48, 48, 49, 50, 51]

cp's OEIS Frontend

A303787 a(n) = Sum_{i=0..m} d(i)4^i, where Sum_{i=0..m} d(i)5^i is the base-5 representation of n.

Table of values

List of values

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

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

cp's OEIS Frontend

A303787 a(n) = Sum_{i=0..m} d(i)*4^i, where Sum_{i=0..m} d(i)*5^i is the base-5 representation of n.

Table of values

List of values

A303787 a(n) = Sum_{i=0..m} d(i)4^i, where Sum_{i=0..m} d(i)5^i is the base-5 representation of n.

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