A259981 - cp's OEIS frontend

A259981 Let b be the n-th composite number, A002808(n); a(n) is number of base-b digits x,y,z such that (xb+y)/(zb+x)=y/z.

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

[1, 2, 2, 2, 4, 4, 2, 6, 7, 4, 4, 10, 6, 6, 6, 4, 6, 10, 6, 4, 8, 6, 6, 21, 2, 6, 18, 6, 4, 18, 10, 8, 10, 10, 12, 12, 6, 16, 22, 14, 6, 10, 2, 12, 21, 12, 20, 4, 10, 22, 10, 2, 12, 20, 14, 24, 8, 24, 8, 10, 28, 6, 6, 18, 10, 28, 16, 10, 6, 6, 30, 4, 24, 37, 6, 6, 46, 14, 10, 6, 18, 24, 6, 18]

cp's OEIS Frontend

A259981 Let b be the n-th composite number, A002808(n); a(n) is number of base-b digits x,y,z such that (xb+y)/(zb+x)=y/z.

Table of values

List of values

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

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

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