A033104 - cp's OEIS frontend

A033104 Number of 5's when k is written in base b for all b and k satisfying 2<=b<=n+1, 1<=k<=n.

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	1
7	1
8	1
9	1
10	1
11	2
12	3
13	4
14	5
15	6
16	7
17	9
18	10
19	12
20	13
21	15
22	16
23	19
24	20
25	22
26	24
27	26
28	27
29	31
30	33
31	36
32	39
33	43
34	45
35	51
36	53
37	57
38	60
39	63
40	67
41	74
42	76
43	79
44	82
45	88
46	91
47	98
48	100
49	104
50	109
51	113
52	116
53	124
54	127
55	132
56	136
57	141
58	144
59	151
60	155
61	162
62	166

[0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 15, 16, 19, 20, 22, 24, 26, 27, 31, 33, 36, 39, 43, 45, 51, 53, 57, 60, 63, 67, 74, 76, 79, 82, 88, 91, 98, 100, 104, 109, 113, 116, 124, 127, 132, 136, 141, 144, 151, 155, 162, 166]

cp's OEIS Frontend

A033104 Number of 5's when k is written in base b for all b and k satisfying 2<=b<=n+1, 1<=k<=n.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	1
7	1
8	1
9	1
10	1
11	2
12	3
13	4
14	5
15	6
16	7
17	9
18	10
19	12
20	13
21	15
22	16
23	19
24	20
25	22
26	24
27	26
28	27
29	31
30	33
31	36
32	39
33	43
34	45
35	51
36	53
37	57
38	60
39	63
40	67
41	74
42	76
43	79
44	82
45	88
46	91
47	98
48	100
49	104
50	109
51	113
52	116
53	124
54	127
55	132
56	136
57	141
58	144
59	151
60	155
61	162
62	166

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	1
7	1
8	1
9	1
10	1
11	2
12	3
13	4
14	5
15	6
16	7
17	9
18	10
19	12
20	13
21	15
22	16
23	19
24	20
25	22
26	24
27	26
28	27
29	31
30	33
31	36
32	39
33	43
34	45
35	51
36	53
37	57
38	60
39	63
40	67
41	74
42	76
43	79
44	82
45	88
46	91
47	98
48	100
49	104
50	109
51	113
52	116
53	124
54	127
55	132
56	136
57	141
58	144
59	151
60	155
61	162
62	166

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	1
7	1
8	1
9	1
10	1
11	2
12	3
13	4
14	5
15	6
16	7
17	9
18	10
19	12
20	13
21	15
22	16
23	19
24	20
25	22
26	24
27	26
28	27
29	31
30	33
31	36
32	39
33	43
34	45
35	51
36	53
37	57
38	60
39	63
40	67
41	74
42	76
43	79
44	82
45	88
46	91
47	98
48	100
49	104
50	109
51	113
52	116
53	124
54	127
55	132
56	136
57	141
58	144
59	151
60	155
61	162
62	166