A033111 - cp's OEIS frontend

A033111 Number of 9's when n is written in base b for 2<=b<=n+1.

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

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

cp's OEIS Frontend

A033111 Number of 9'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	0
5	0
6	0
7	0
8	0
9	1
10	0
11	0
12	0
13	0
14	0
15	0
16	0
17	0
18	0
19	1
20	1
21	1
22	1
23	1
24	1
25	1
26	1
27	1
28	1
29	2
30	1
31	2
32	1
33	2
34	1
35	2
36	1
37	2
38	1
39	3
40	1
41	2
42	2
43	2
44	1
45	3
46	1
47	2
48	2
49	3
50	1
51	3
52	1
53	3
54	2
55	2
56	1
57	4
58	1
59	3
60	2
61	3
62	1
63	3
64	2
65	3
66	2
67	2
68	1
69	6
70	1
71	2
72	2
73	3
74	2
75	4
76	1
77	3
78	2
79	4
80	1
81	5
82	1
83	2
84	3
85	3
86	2
87	4
88	1
89	5
90	3

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

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