A353309 - cp's OEIS frontend

A353309 The maximum sum of base-3 digits occurring among all numbers reached after n, when iterating map x -> A353313(x) starting from x=n, or -1 if no finite cycle is ever reached.

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

[0, 2, 18, 2, 2, 18, 18, 6, 18, 2, 18, 5, 2, 18, 6, 18, 6, 18, 18, 18, 5, 6, 18, 5, 18, 6, 18, 2, 5, 6, 18, 18, 18, 5, 18, 5, 2, 6, 18, 18, 5, 13, 6, 13, 6, 18, 8, 18, 6, 5, 6, 18, 6, 18, 18, 18, 8, 18, 5, 18, 5, 18, 5, 6, 6, 18, 18, 18, 8, 5, 13, 5, 18, 18, 13, 6, 13, 18, 18, 8, 18, 2, 18, 18, 5, 6, 13, 6, 13, 6]

cp's OEIS Frontend

A353309 The maximum sum of base-3 digits occurring among all numbers reached after n, when iterating map x -> A353313(x) starting from x=n, or -1 if no finite cycle is ever reached.

Table of values

List of values

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

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

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