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.

A131323 Odd numbers whose binary expansion ends in an even number of 1's.

Table of values

n a(n)
1 3
2 11
3 15
4 19
5 27
6 35
7 43
8 47
9 51
10 59
11 63
12 67
13 75
14 79
15 83
16 91
17 99
18 107
19 111
20 115
21 123
22 131
23 139
24 143
25 147
26 155
27 163
28 171
29 175
30 179
31 187
32 191
33 195
34 203
35 207
36 211
37 219
38 227
39 235
40 239
41 243
42 251
43 255
44 259
45 267
46 271
47 275
48 283
49 291
50 299
51 303
52 307
53 315
54 319
55 323
56 331

List of values

[3, 11, 15, 19, 27, 35, 43, 47, 51, 59, 63, 67, 75, 79, 83, 91, 99, 107, 111, 115, 123, 131, 139, 143, 147, 155, 163, 171, 175, 179, 187, 191, 195, 203, 207, 211, 219, 227, 235, 239, 243, 251, 255, 259, 267, 271, 275, 283, 291, 299, 303, 307, 315, 319, 323, 331]