A091047 - cp's OEIS frontend

A091047 a(n) = the final value of n reached through repeated interpretation of n as a base b+1 number where b is the largest digit of n.

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

[1, 2, 3, 4, 5, 6, 7, 8, 9, 2, 3, 5, 7, 9, 3, 7, 3, 3, 19, 6, 7, 8, 3, 9, 3, 6, 3, 6, 29, 5, 7, 9, 3, 19, 3, 3, 7, 3, 39, 6, 7, 8, 3, 9, 29, 19, 39, 9, 49, 5, 7, 9, 3, 19, 3, 7, 39, 3, 59, 8, 3, 9, 29, 19, 39, 9, 3, 9, 69, 7, 39, 3, 59, 8, 3, 9, 29, 39, 79, 3, 59, 8, 3, 9, 29, 39, 79, 3, 89, 90, 91, 92]

cp's OEIS Frontend

A091047 a(n) = the final value of n reached through repeated interpretation of n as a base b+1 number where b is the largest digit of n.

Table of values

List of values

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

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

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