A066329 - cp's OEIS frontend

A066329 Binary string which equals n when 1's, 2's, 4's and 8's bits have weights 1, 1, 3, 5 respectively, while the other bits have their usual weights. -1 if no such string exists.

n	a(n)
0	0
1	1
2	11
3	100
4	101
5	1000
6	1001
7	1011
8	1100
9	1101
10	1111
11	-1
12	-1
13	-1
14	-1
15	-1
16	10000
17	10001
18	10011
19	10100
20	10101
21	11000
22	11001
23	11011
24	11100
25	11101
26	11111
27	-1
28	-1
29	-1
30	-1
31	-1
32	100000
33	100001
34	100011
35	100100
36	100101
37	101000
38	101001
39	101011
40	101100
41	101101
42	101111
43	-1
44	-1
45	-1
46	-1
47	-1
48	110000
49	110001
50	110011

[0, 1, 11, 100, 101, 1000, 1001, 1011, 1100, 1101, 1111, -1, -1, -1, -1, -1, 10000, 10001, 10011, 10100, 10101, 11000, 11001, 11011, 11100, 11101, 11111, -1, -1, -1, -1, -1, 100000, 100001, 100011, 100100, 100101, 101000, 101001, 101011, 101100, 101101, 101111, -1, -1, -1, -1, -1, 110000, 110001, 110011]

cp's OEIS Frontend

A066329 Binary string which equals n when 1's, 2's, 4's and 8's bits have weights 1, 1, 3, 5 respectively, while the other bits have their usual weights. -1 if no such string exists.

Table of values

List of values