A099307 - cp's OEIS frontend

A099307 Least k such that the k-th arithmetic derivative of n is zero, or 0 if no k exists.

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

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

cp's OEIS Frontend

A099307 Least k such that the k-th arithmetic derivative of n is zero, or 0 if no k exists.

Table of values

List of values

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

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

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