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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.

A190939 Subgroups of nimber addition interpreted as binary numbers.

Table of values

n a(n)
0 1
1 3
2 5
3 9
4 15
5 17
6 33
7 51
8 65
9 85
10 105
11 129
12 153
13 165
14 195
15 255
16 257
17 513
18 771
19 1025
20 1285
21 1545
22 2049
23 2313
24 2565
25 3075
26 3855
27 4097
28 4369
29 4641
30 5185
31 6273
32 8193
33 8481
34 8721
35 9345
36 10305
37 12291
38 13107
39 15555
40 16385
41 16705
42 17025
43 17425
44 18465
45 20485
46 21845

List of values

[1, 3, 5, 9, 15, 17, 33, 51, 65, 85, 105, 129, 153, 165, 195, 255, 257, 513, 771, 1025, 1285, 1545, 2049, 2313, 2565, 3075, 3855, 4097, 4369, 4641, 5185, 6273, 8193, 8481, 8721, 9345, 10305, 12291, 13107, 15555, 16385, 16705, 17025, 17425, 18465, 20485, 21845]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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