A258236 - cp's OEIS frontend

A258236 Number of steps from n to 0, where allowable steps are x -> [x/r] if x is in upper Wythoff sequence (A001950) and x -> [r*x] otherwise, where [ ] = floor and r = (3+sqrt(5))/2.

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

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

cp's OEIS Frontend

A258236 Number of steps from n to 0, where allowable steps are x -> [x/r] if x is in upper Wythoff sequence (A001950) and x -> [r*x] otherwise, where [ ] = floor and r = (3+sqrt(5))/2.

Table of values

List of values

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

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

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