A085693 - cp's OEIS frontend

A085693 Let f(0) = 1, f(1) = 12, f(2) = 223, f(3) = 3334, = f(4) = 44445, f(5) = 555556, etc. Sequence gives concatenation of 0, f(0), f(f(0)), f(f(f(0))), ...

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

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

cp's OEIS Frontend

A085693 Let f(0) = 1, f(1) = 12, f(2) = 223, f(3) = 3334, = f(4) = 44445, f(5) = 555556, etc. Sequence gives concatenation of 0, f(0), f(f(0)), f(f(f(0))), ...

Table of values

List of values

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

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

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