A262905 - cp's OEIS frontend

A262905 a(n) = number of steps needed to reach zero when starting with k = n, and repeatedly replacing k with A262904(k).

n	a(n)
0	0
1	1
2	2
3	1
4	1
5	1
6	3
7	1
8	1
9	3
10	3
11	3
12	2
13	3
14	3
15	3
16	3
17	3
18	2
19	3
20	3
21	3
22	2
23	3
24	3
25	2
26	2
27	3
28	2
29	3
30	4
31	3
32	2
33	3
34	2
35	3
36	3
37	3
38	2
39	3
40	2
41	3
42	2
43	3
44	2
45	3
46	4
47	3
48	2
49	4
50	2
51	3
52	4
53	3
54	4
55	3
56	2
57	3
58	4
59	3
60	2
61	3
62	3
63	3
64	3
65	3
66	4
67	3
68	3
69	3
70	4
71	3
72	2
73	3
74	4
75	3
76	4
77	3
78	4
79	3
80	4
81	4
82	4
83	4
84	2
85	4
86	4
87	4
88	4
89	4
90	4
91	4
92	4
93	4
94	4
95	4
96	2
97	4
98	4
99	4
100	4
101	4
102	4
103	4
104	2
105	4
106	3
107	4
108	2
109	4
110	4
111	4
112	4
113	4
114	4
115	4
116	4
117	4
118	4
119	4
120	2
121	4

[0, 1, 2, 1, 1, 1, 3, 1, 1, 3, 3, 3, 2, 3, 3, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 2, 2, 3, 2, 3, 4, 3, 2, 3, 2, 3, 3, 3, 2, 3, 2, 3, 2, 3, 2, 3, 4, 3, 2, 4, 2, 3, 4, 3, 4, 3, 2, 3, 4, 3, 2, 3, 3, 3, 3, 3, 4, 3, 3, 3, 4, 3, 2, 3, 4, 3, 4, 3, 4, 3, 4, 4, 4, 4, 2, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 4, 4, 4, 4, 4, 4, 4, 2, 4, 3, 4, 2, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 4]

cp's OEIS Frontend

A262905 a(n) = number of steps needed to reach zero when starting with k = n, and repeatedly replacing k with A262904(k).

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	1
4	1
5	1
6	3
7	1
8	1
9	3
10	3
11	3
12	2
13	3
14	3
15	3
16	3
17	3
18	2
19	3
20	3
21	3
22	2
23	3
24	3
25	2
26	2
27	3
28	2
29	3
30	4
31	3
32	2
33	3
34	2
35	3
36	3
37	3
38	2
39	3
40	2
41	3
42	2
43	3
44	2
45	3
46	4
47	3
48	2
49	4
50	2
51	3
52	4
53	3
54	4
55	3
56	2
57	3
58	4
59	3
60	2
61	3
62	3
63	3
64	3
65	3
66	4
67	3
68	3
69	3
70	4
71	3
72	2
73	3
74	4
75	3
76	4
77	3
78	4
79	3
80	4
81	4
82	4
83	4
84	2
85	4
86	4
87	4
88	4
89	4
90	4
91	4
92	4
93	4
94	4
95	4
96	2
97	4
98	4
99	4
100	4
101	4
102	4
103	4
104	2
105	4
106	3
107	4
108	2
109	4
110	4
111	4
112	4
113	4
114	4
115	4
116	4
117	4
118	4
119	4
120	2
121	4

n	a(n)
0	0
1	1
2	2
3	1
4	1
5	1
6	3
7	1
8	1
9	3
10	3
11	3
12	2
13	3
14	3
15	3
16	3
17	3
18	2
19	3
20	3
21	3
22	2
23	3
24	3
25	2
26	2
27	3
28	2
29	3
30	4
31	3
32	2
33	3
34	2
35	3
36	3
37	3
38	2
39	3
40	2
41	3
42	2
43	3
44	2
45	3
46	4
47	3
48	2
49	4
50	2
51	3
52	4
53	3
54	4
55	3
56	2
57	3
58	4
59	3
60	2
61	3
62	3
63	3
64	3
65	3
66	4
67	3
68	3
69	3
70	4
71	3
72	2
73	3
74	4
75	3
76	4
77	3
78	4
79	3
80	4
81	4
82	4
83	4
84	2
85	4
86	4
87	4
88	4
89	4
90	4
91	4
92	4
93	4
94	4
95	4
96	2
97	4
98	4
99	4
100	4
101	4
102	4
103	4
104	2
105	4
106	3
107	4
108	2
109	4
110	4
111	4
112	4
113	4
114	4
115	4
116	4
117	4
118	4
119	4
120	2
121	4

n	a(n)
0	0
1	1
2	2
3	1
4	1
5	1
6	3
7	1
8	1
9	3
10	3
11	3
12	2
13	3
14	3
15	3
16	3
17	3
18	2
19	3
20	3
21	3
22	2
23	3
24	3
25	2
26	2
27	3
28	2
29	3
30	4
31	3
32	2
33	3
34	2
35	3
36	3
37	3
38	2
39	3
40	2
41	3
42	2
43	3
44	2
45	3
46	4
47	3
48	2
49	4
50	2
51	3
52	4
53	3
54	4
55	3
56	2
57	3
58	4
59	3
60	2
61	3
62	3
63	3
64	3
65	3
66	4
67	3
68	3
69	3
70	4
71	3
72	2
73	3
74	4
75	3
76	4
77	3
78	4
79	3
80	4
81	4
82	4
83	4
84	2
85	4
86	4
87	4
88	4
89	4
90	4
91	4
92	4
93	4
94	4
95	4
96	2
97	4
98	4
99	4
100	4
101	4
102	4
103	4
104	2
105	4
106	3
107	4
108	2
109	4
110	4
111	4
112	4
113	4
114	4
115	4
116	4
117	4
118	4
119	4
120	2
121	4