A318927 - cp's OEIS frontend

A318927 Take the binary expansion of n, starting with the most significant bit, and concatenate the lengths of the runs.

n	a(n)
1	1
2	11
3	2
4	12
5	111
6	21
7	3
8	13
9	121
10	1111
11	112
12	22
13	211
14	31
15	4
16	14
17	131
18	1211
19	122
20	1112
21	11111
22	1121
23	113
24	23
25	221
26	2111
27	212
28	32
29	311
30	41
31	5
32	15
33	141
34	1311
35	132
36	1212
37	12111
38	1221
39	123
40	1113

[1, 11, 2, 12, 111, 21, 3, 13, 121, 1111, 112, 22, 211, 31, 4, 14, 131, 1211, 122, 1112, 11111, 1121, 113, 23, 221, 2111, 212, 32, 311, 41, 5, 15, 141, 1311, 132, 1212, 12111, 1221, 123, 1113]

cp's OEIS Frontend

A318927 Take the binary expansion of n, starting with the most significant bit, and concatenate the lengths of the runs.

Table of values

List of values