A066334 - cp's OEIS frontend

A066334 Binary string which equals n when 1's, 2's, 4's and 8's bits have weights 1, 2, 4, 2 respectively, while the other bits have their usual weights. -1 if no such string exists.

n	a(n)
0	0
1	1
2	10
3	11
4	100
5	101
6	110
7	111
8	1110
9	1111
10	-1
11	-1
12	-1
13	-1
14	-1
15	-1
16	10000
17	10001
18	10010
19	10011
20	10100
21	10101
22	10110
23	10111
24	11110
25	11111
26	-1
27	-1
28	-1
29	-1
30	-1
31	-1
32	100000
33	100001
34	100010
35	100011
36	100100
37	100101
38	100110
39	100111
40	101110
41	101111
42	-1
43	-1
44	-1
45	-1
46	-1
47	-1
48	110000
49	110001
50	110010
51	110011

[0, 1, 10, 11, 100, 101, 110, 111, 1110, 1111, -1, -1, -1, -1, -1, -1, 10000, 10001, 10010, 10011, 10100, 10101, 10110, 10111, 11110, 11111, -1, -1, -1, -1, -1, -1, 100000, 100001, 100010, 100011, 100100, 100101, 100110, 100111, 101110, 101111, -1, -1, -1, -1, -1, -1, 110000, 110001, 110010, 110011]

cp's OEIS Frontend

A066334 Binary string which equals n when 1's, 2's, 4's and 8's bits have weights 1, 2, 4, 2 respectively, while the other bits have their usual weights. -1 if no such string exists.

Table of values

List of values