A033101 - cp's OEIS frontend

A033101 Number of 4's when n is written in base b for 2<=b<=n+1.

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

[0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 2, 3, 2, 4, 2, 5, 3, 3, 2, 6, 4, 3, 3, 5, 3, 7, 2, 5, 4, 4, 5, 7, 3, 4, 4, 8, 4, 8, 4, 7, 8, 4, 3, 9, 5, 7, 4, 6, 4, 8, 6, 9, 6, 6, 5, 13, 5, 5, 7, 8, 7, 9, 5, 8, 7, 11, 4, 12, 6, 7, 9, 8, 8, 10, 6, 12, 7, 6, 5, 13]

cp's OEIS Frontend

A033101 Number of 4's when n is written in base b for 2<=b<=n+1.

Table of values

List of values

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

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

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