A038571 - cp's OEIS frontend

A038571 Number of times n must be differentiated to reach 0.

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

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

cp's OEIS Frontend

A038571 Number of times n must be differentiated to reach 0.

Table of values

List of values

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

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

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