cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A190896 Least positive integer whose binary representation does not occur in the concatenation of the binary representations of all earlier terms.

Table of values

n a(n)
0 1
1 2
2 3
3 4
4 8
5 10
6 13
7 15
8 16
9 19
10 20
11 32
12 35
13 37
14 38
15 40
16 49
17 54
18 61
19 64
20 67
21 68
22 73
23 74
24 79
25 80
26 85
27 87
28 93
29 103
30 117
31 121
32 127
33 128
34 131
35 134
36 136
37 139
38 141
39 143
40 148
41 151
42 152
43 155
44 156
45 158
46 160
47 165
48 166
49 170
50 172
51 174
52 182
53 193
54 197
55 217
56 218
57 239
58 241
59 251
60 256
61 259
62 262
63 264
64 267
65 268

List of values

[1, 2, 3, 4, 8, 10, 13, 15, 16, 19, 20, 32, 35, 37, 38, 40, 49, 54, 61, 64, 67, 68, 73, 74, 79, 80, 85, 87, 93, 103, 117, 121, 127, 128, 131, 134, 136, 139, 141, 143, 148, 151, 152, 155, 156, 158, 160, 165, 166, 170, 172, 174, 182, 193, 197, 217, 218, 239, 241, 251, 256, 259, 262, 264, 267, 268]