A171823 - cp's OEIS frontend

A171823 a(n) = base-2 concatenation XYZ, where X = number of bits in binary expansion of n, Y = number of 0's, Z = number of 1's.

n	a(n)
1	101
2	1011
3	10010
4	11101
5	11110
6	11110
7	11011
8	100111
9	1001010
10	1001010
11	100111
12	1001010
13	100111
14	100111
15	1000100
16	1011001
17	1011110
18	1011110
19	1011011
20	1011110
21	1011011
22	1011011
23	1011100
24	1011110
25	1011011
26	1011011
27	1011100
28	1011011
29	1011100
30	1011100

[101, 1011, 10010, 11101, 11110, 11110, 11011, 100111, 1001010, 1001010, 100111, 1001010, 100111, 100111, 1000100, 1011001, 1011110, 1011110, 1011011, 1011110, 1011011, 1011011, 1011100, 1011110, 1011011, 1011011, 1011100, 1011011, 1011100, 1011100]

cp's OEIS Frontend

A171823 a(n) = base-2 concatenation XYZ, where X = number of bits in binary expansion of n, Y = number of 0's, Z = number of 1's.

Table of values

List of values