A065714 - cp's OEIS frontend

A065714 Number of 3's in decimal expansion of 2^n.

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

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

cp's OEIS Frontend

A065714 Number of 3's in 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	1
6	0
7	0
8	0
9	0
10	0
11	0
12	0
13	0
14	1
15	1
16	1
17	1
18	0
19	0
20	0
21	0
22	1
23	1
24	0
25	3
26	0
27	1
28	1
29	1
30	1
31	1
32	0
33	1
34	0
35	4
36	1
37	3
38	0
39	1
40	0
41	1
42	1
43	1
44	0
45	3
46	1
47	3
48	0
49	2
50	0
51	1
52	2
53	0
54	1
55	2
56	2
57	0
58	2
59	3
60	0
61	4
62	1
63	3
64	1
65	4
66	2
67	1
68	1
69	1
70	2
71	3
72	2
73	3
74	1
75	2
76	4
77	1
78	4
79	3
80	0
81	3
82	2
83	3
84	4
85	4
86	3
87	3
88	2
89	1
90	3
91	0
92	0
93	4
94	2
95	2
96	6
97	1
98	4
99	4
100	2

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

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