A099302 - cp's OEIS frontend

A099302 Number of integer solutions to x' = n, where x' is the arithmetic derivative of x.

n	a(n)
2	0
3	0
4	1
5	1
6	1
7	1
8	1
9	1
10	2
11	0
12	2
13	1
14	2
15	1
16	3
17	0
18	2
19	1
20	2
21	2
22	3
23	0
24	4
25	1
26	3
27	1
28	2
29	0
30	3
31	2
32	4
33	1
34	4
35	0
36	4
37	0
38	2
39	2
40	3
41	1
42	4
43	1
44	4
45	2
46	4
47	0
48	6
49	1
50	4
51	1
52	3
53	0
54	5
55	2
56	4
57	0
58	4
59	1
60	7
61	2
62	3
63	1
64	5
65	0
66	6
67	0
68	3
69	1
70	5
71	2
72	7
73	1
74	5
75	3
76	5
77	1
78	7
79	0
80	6
81	2
82	5
83	0
84	8
85	1
86	5
87	2
88	4
89	0
90	9
91	3
92	6
93	0
94	5
95	1
96	8
97	0
98	3
99	1
100	6
101	2
102	8
103	2
104	5
105	1
106	6

[0, 0, 1, 1, 1, 1, 1, 1, 2, 0, 2, 1, 2, 1, 3, 0, 2, 1, 2, 2, 3, 0, 4, 1, 3, 1, 2, 0, 3, 2, 4, 1, 4, 0, 4, 0, 2, 2, 3, 1, 4, 1, 4, 2, 4, 0, 6, 1, 4, 1, 3, 0, 5, 2, 4, 0, 4, 1, 7, 2, 3, 1, 5, 0, 6, 0, 3, 1, 5, 2, 7, 1, 5, 3, 5, 1, 7, 0, 6, 2, 5, 0, 8, 1, 5, 2, 4, 0, 9, 3, 6, 0, 5, 1, 8, 0, 3, 1, 6, 2, 8, 2, 5, 1, 6]

cp's OEIS Frontend

A099302 Number of integer solutions to x' = n, where x' is the arithmetic derivative of x.

Table of values

List of values

n	a(n)
2	0
3	0
4	1
5	1
6	1
7	1
8	1
9	1
10	2
11	0
12	2
13	1
14	2
15	1
16	3
17	0
18	2
19	1
20	2
21	2
22	3
23	0
24	4
25	1
26	3
27	1
28	2
29	0
30	3
31	2
32	4
33	1
34	4
35	0
36	4
37	0
38	2
39	2
40	3
41	1
42	4
43	1
44	4
45	2
46	4
47	0
48	6
49	1
50	4
51	1
52	3
53	0
54	5
55	2
56	4
57	0
58	4
59	1
60	7
61	2
62	3
63	1
64	5
65	0
66	6
67	0
68	3
69	1
70	5
71	2
72	7
73	1
74	5
75	3
76	5
77	1
78	7
79	0
80	6
81	2
82	5
83	0
84	8
85	1
86	5
87	2
88	4
89	0
90	9
91	3
92	6
93	0
94	5
95	1
96	8
97	0
98	3
99	1
100	6
101	2
102	8
103	2
104	5
105	1
106	6

n	a(n)
2	0
3	0
4	1
5	1
6	1
7	1
8	1
9	1
10	2
11	0
12	2
13	1
14	2
15	1
16	3
17	0
18	2
19	1
20	2
21	2
22	3
23	0
24	4
25	1
26	3
27	1
28	2
29	0
30	3
31	2
32	4
33	1
34	4
35	0
36	4
37	0
38	2
39	2
40	3
41	1
42	4
43	1
44	4
45	2
46	4
47	0
48	6
49	1
50	4
51	1
52	3
53	0
54	5
55	2
56	4
57	0
58	4
59	1
60	7
61	2
62	3
63	1
64	5
65	0
66	6
67	0
68	3
69	1
70	5
71	2
72	7
73	1
74	5
75	3
76	5
77	1
78	7
79	0
80	6
81	2
82	5
83	0
84	8
85	1
86	5
87	2
88	4
89	0
90	9
91	3
92	6
93	0
94	5
95	1
96	8
97	0
98	3
99	1
100	6
101	2
102	8
103	2
104	5
105	1
106	6

n	a(n)
2	0
3	0
4	1
5	1
6	1
7	1
8	1
9	1
10	2
11	0
12	2
13	1
14	2
15	1
16	3
17	0
18	2
19	1
20	2
21	2
22	3
23	0
24	4
25	1
26	3
27	1
28	2
29	0
30	3
31	2
32	4
33	1
34	4
35	0
36	4
37	0
38	2
39	2
40	3
41	1
42	4
43	1
44	4
45	2
46	4
47	0
48	6
49	1
50	4
51	1
52	3
53	0
54	5
55	2
56	4
57	0
58	4
59	1
60	7
61	2
62	3
63	1
64	5
65	0
66	6
67	0
68	3
69	1
70	5
71	2
72	7
73	1
74	5
75	3
76	5
77	1
78	7
79	0
80	6
81	2
82	5
83	0
84	8
85	1
86	5
87	2
88	4
89	0
90	9
91	3
92	6
93	0
94	5
95	1
96	8
97	0
98	3
99	1
100	6
101	2
102	8
103	2
104	5
105	1
106	6