A349877 - cp's OEIS frontend

A349877 a(n) is the number of times the map x -> A353314(x) needs to be applied to n to reach a multiple of 3, or -1 if the trajectory never reaches a multiple of 3.

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

[0, 2, 14, 0, 1, 13, 0, 4, 1, 0, 12, 3, 0, 1, 3, 0, 4, 1, 0, 11, 2, 0, 1, 2, 0, 2, 1, 0, 2, 3, 0, 1, 3, 0, 10, 1, 0, 4, 5, 0, 1, 7, 0, 3, 1, 0, 3, 2, 0, 1, 2, 0, 2, 1, 0, 2, 4, 0, 1, 9, 0, 3, 1, 0, 3, 4, 0, 1, 5, 0, 6, 1, 0, 4, 2, 0, 1, 2, 0, 2, 1, 0, 2, 7, 0, 1, 4, 0, 6, 1, 0, 6, 3, 0, 1, 3, 0, 5, 1, 0, 8, 2, 0]

cp's OEIS Frontend

A349877 a(n) is the number of times the map x -> A353314(x) needs to be applied to n to reach a multiple of 3, or -1 if the trajectory never reaches a multiple of 3.

Table of values

List of values

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

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

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