A087707 - cp's OEIS frontend

A087707 Number of steps for iteration of map x -> (5/3)*ceiling(x) to reach an integer > n when started at n, or -1 if no such integer is ever reached.

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

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

cp's OEIS Frontend

A087707 Number of steps for iteration of map x -> (5/3)*ceiling(x) to reach an integer > n when started at n, or -1 if no such integer is ever reached.

Table of values

List of values

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

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

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