A175872 - cp's OEIS frontend

A175872 Write n in binary. Consider the 0's and 1 as a list. () If the new list consists entirely of 1's, then a(n) = the number of 1's, and end. Otherwise, construct a new list made up of the lengths, written in order, of the runs of similarly-valued terms from the previous list. Go to .

n	a(n)
1	1
2	2
3	2
4	2
5	3
6	2
7	3
8	2
9	3
10	4
11	2
12	1
13	2
14	2
15	4
16	2
17	3
18	2
19	2
20	2
21	5
22	2
23	2
24	2
25	2
26	2
27	3
28	2
29	2
30	2
31	5
32	2
33	3
34	2
35	3
36	4
37	2
38	3
39	3
40	2
41	2
42	6
43	2
44	1
45	3
46	2
47	2
48	2
49	3
50	1
51	1
52	3
53	2
54	4
55	3
56	1
57	3
58	2
59	3
60	2
61	2
62	2
63	6
64	2
65	3
66	2
67	3
68	4
69	2
70	4
71	2
72	4
73	5
74	2
75	2
76	2
77	2
78	4
79	3
80	2
81	2
82	3
83	2
84	2
85	7
86	2
87	2
88	2
89	2
90	3
91	2
92	2
93	3
94	2
95	2
96	2
97	3
98	2
99	3
100	2
101	2
102	2
103	2
104	3
105	2
106	2
107	3
108	2
109	2

[1, 2, 2, 2, 3, 2, 3, 2, 3, 4, 2, 1, 2, 2, 4, 2, 3, 2, 2, 2, 5, 2, 2, 2, 2, 2, 3, 2, 2, 2, 5, 2, 3, 2, 3, 4, 2, 3, 3, 2, 2, 6, 2, 1, 3, 2, 2, 2, 3, 1, 1, 3, 2, 4, 3, 1, 3, 2, 3, 2, 2, 2, 6, 2, 3, 2, 3, 4, 2, 4, 2, 4, 5, 2, 2, 2, 2, 4, 3, 2, 2, 3, 2, 2, 7, 2, 2, 2, 2, 3, 2, 2, 3, 2, 2, 2, 3, 2, 3, 2, 2, 2, 2, 3, 2, 2, 3, 2, 2]

cp's OEIS Frontend

A175872 Write n in binary. Consider the 0's and 1 as a list. () If the new list consists entirely of 1's, then a(n) = the number of 1's, and end. Otherwise, construct a new list made up of the lengths, written in order, of the runs of similarly-valued terms from the previous list. Go to .

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	2
5	3
6	2
7	3
8	2
9	3
10	4
11	2
12	1
13	2
14	2
15	4
16	2
17	3
18	2
19	2
20	2
21	5
22	2
23	2
24	2
25	2
26	2
27	3
28	2
29	2
30	2
31	5
32	2
33	3
34	2
35	3
36	4
37	2
38	3
39	3
40	2
41	2
42	6
43	2
44	1
45	3
46	2
47	2
48	2
49	3
50	1
51	1
52	3
53	2
54	4
55	3
56	1
57	3
58	2
59	3
60	2
61	2
62	2
63	6
64	2
65	3
66	2
67	3
68	4
69	2
70	4
71	2
72	4
73	5
74	2
75	2
76	2
77	2
78	4
79	3
80	2
81	2
82	3
83	2
84	2
85	7
86	2
87	2
88	2
89	2
90	3
91	2
92	2
93	3
94	2
95	2
96	2
97	3
98	2
99	3
100	2
101	2
102	2
103	2
104	3
105	2
106	2
107	3
108	2
109	2

n	a(n)
1	1
2	2
3	2
4	2
5	3
6	2
7	3
8	2
9	3
10	4
11	2
12	1
13	2
14	2
15	4
16	2
17	3
18	2
19	2
20	2
21	5
22	2
23	2
24	2
25	2
26	2
27	3
28	2
29	2
30	2
31	5
32	2
33	3
34	2
35	3
36	4
37	2
38	3
39	3
40	2
41	2
42	6
43	2
44	1
45	3
46	2
47	2
48	2
49	3
50	1
51	1
52	3
53	2
54	4
55	3
56	1
57	3
58	2
59	3
60	2
61	2
62	2
63	6
64	2
65	3
66	2
67	3
68	4
69	2
70	4
71	2
72	4
73	5
74	2
75	2
76	2
77	2
78	4
79	3
80	2
81	2
82	3
83	2
84	2
85	7
86	2
87	2
88	2
89	2
90	3
91	2
92	2
93	3
94	2
95	2
96	2
97	3
98	2
99	3
100	2
101	2
102	2
103	2
104	3
105	2
106	2
107	3
108	2
109	2

cp's OEIS Frontend

A175872 Write n in binary. Consider the 0's and 1 as a list. (*) If the new list consists entirely of 1's, then a(n) = the number of 1's, and end. Otherwise, construct a new list made up of the lengths, written in order, of the runs of similarly-valued terms from the previous list. Go to *.

Table of values

List of values

A175872 Write n in binary. Consider the 0's and 1 as a list. () If the new list consists entirely of 1's, then a(n) = the number of 1's, and end. Otherwise, construct a new list made up of the lengths, written in order, of the runs of similarly-valued terms from the previous list. Go to .

n	a(n)
1	1
2	2
3	2
4	2
5	3
6	2
7	3
8	2
9	3
10	4
11	2
12	1
13	2
14	2
15	4
16	2
17	3
18	2
19	2
20	2
21	5
22	2
23	2
24	2
25	2
26	2
27	3
28	2
29	2
30	2
31	5
32	2
33	3
34	2
35	3
36	4
37	2
38	3
39	3
40	2
41	2
42	6
43	2
44	1
45	3
46	2
47	2
48	2
49	3
50	1
51	1
52	3
53	2
54	4
55	3
56	1
57	3
58	2
59	3
60	2
61	2
62	2
63	6
64	2
65	3
66	2
67	3
68	4
69	2
70	4
71	2
72	4
73	5
74	2
75	2
76	2
77	2
78	4
79	3
80	2
81	2
82	3
83	2
84	2
85	7
86	2
87	2
88	2
89	2
90	3
91	2
92	2
93	3
94	2
95	2
96	2
97	3
98	2
99	3
100	2
101	2
102	2
103	2
104	3
105	2
106	2
107	3
108	2
109	2