A305944 - cp's OEIS frontend

A305944 Number of powers of 4 having exactly n digits '0' (in base 10), conjectured.

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

[16, 22, 17, 14, 11, 19, 15, 15, 21, 20, 17, 22, 12, 13, 17, 24, 16, 19, 8, 17, 11, 15, 17, 15, 20, 17, 18, 20, 17, 21, 16, 19, 16, 14, 15, 19, 20, 24, 7, 16, 13, 14, 13, 14, 22, 22, 15, 18, 16, 16, 25]

cp's OEIS Frontend

A305944 Number of powers of 4 having exactly n digits '0' (in base 10), conjectured.

Table of values

List of values

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

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

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