A065744 - cp's OEIS frontend

A065744 Number of 9's in the decimal expansion of 2^n.

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	1
13	1
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	1
22	1
23	0
24	0
25	0
26	0
27	0
28	0
29	1
30	0
31	0
32	3
33	3
34	2
35	1
36	1
37	1
38	2
39	1
40	2
41	2
42	1
43	2
44	1
45	0
46	0
47	0
48	1
49	3
50	3
51	2
52	3
53	5
54	3
55	3
56	3
57	0
58	0
59	0
60	2
61	3
62	1
63	1
64	1
65	2
66	2
67	3
68	3
69	2
70	1
71	0
72	2
73	5
74	2
75	3
76	2
77	0
78	2
79	2
80	3
81	3
82	1
83	4
84	3
85	2
86	1
87	2
88	2
89	4
90	4
91	2
92	6
93	8
94	3
95	3
96	3
97	1
98	1
99	0
100	2

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 3, 3, 2, 1, 1, 1, 2, 1, 2, 2, 1, 2, 1, 0, 0, 0, 1, 3, 3, 2, 3, 5, 3, 3, 3, 0, 0, 0, 2, 3, 1, 1, 1, 2, 2, 3, 3, 2, 1, 0, 2, 5, 2, 3, 2, 0, 2, 2, 3, 3, 1, 4, 3, 2, 1, 2, 2, 4, 4, 2, 6, 8, 3, 3, 3, 1, 1, 0, 2]

cp's OEIS Frontend

A065744 Number of 9's in the decimal expansion of 2^n.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	1
13	1
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	1
22	1
23	0
24	0
25	0
26	0
27	0
28	0
29	1
30	0
31	0
32	3
33	3
34	2
35	1
36	1
37	1
38	2
39	1
40	2
41	2
42	1
43	2
44	1
45	0
46	0
47	0
48	1
49	3
50	3
51	2
52	3
53	5
54	3
55	3
56	3
57	0
58	0
59	0
60	2
61	3
62	1
63	1
64	1
65	2
66	2
67	3
68	3
69	2
70	1
71	0
72	2
73	5
74	2
75	3
76	2
77	0
78	2
79	2
80	3
81	3
82	1
83	4
84	3
85	2
86	1
87	2
88	2
89	4
90	4
91	2
92	6
93	8
94	3
95	3
96	3
97	1
98	1
99	0
100	2

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	1
13	1
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	1
22	1
23	0
24	0
25	0
26	0
27	0
28	0
29	1
30	0
31	0
32	3
33	3
34	2
35	1
36	1
37	1
38	2
39	1
40	2
41	2
42	1
43	2
44	1
45	0
46	0
47	0
48	1
49	3
50	3
51	2
52	3
53	5
54	3
55	3
56	3
57	0
58	0
59	0
60	2
61	3
62	1
63	1
64	1
65	2
66	2
67	3
68	3
69	2
70	1
71	0
72	2
73	5
74	2
75	3
76	2
77	0
78	2
79	2
80	3
81	3
82	1
83	4
84	3
85	2
86	1
87	2
88	2
89	4
90	4
91	2
92	6
93	8
94	3
95	3
96	3
97	1
98	1
99	0
100	2

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	1
13	1
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	1
22	1
23	0
24	0
25	0
26	0
27	0
28	0
29	1
30	0
31	0
32	3
33	3
34	2
35	1
36	1
37	1
38	2
39	1
40	2
41	2
42	1
43	2
44	1
45	0
46	0
47	0
48	1
49	3
50	3
51	2
52	3
53	5
54	3
55	3
56	3
57	0
58	0
59	0
60	2
61	3
62	1
63	1
64	1
65	2
66	2
67	3
68	3
69	2
70	1
71	0
72	2
73	5
74	2
75	3
76	2
77	0
78	2
79	2
80	3
81	3
82	1
83	4
84	3
85	2
86	1
87	2
88	2
89	4
90	4
91	2
92	6
93	8
94	3
95	3
96	3
97	1
98	1
99	0
100	2