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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.

A306662 Least number k such that the determinant of the circulant matrix of its representation in base 2 is equal to n.

Table of values

n a(n)
0 0
1 1
2 5
3 11
4 23
5 47
6 95
7 191
8 43
9 38
10 1535
11 3071
12 571
13 12287
14 24575
15 137
16 269
17 196607
18 393215
19 786431
20 295
21 687
22 6291455
23 12582911
24 69
25 155
26 100663295
27 134
28 293
29 805306367
30 1610612735
31 3221225471
32 75
33 518
34 25769803775
35 301
36 8874

List of values

[0, 1, 5, 11, 23, 47, 95, 191, 43, 38, 1535, 3071, 571, 12287, 24575, 137, 269, 196607, 393215, 786431, 295, 687, 6291455, 12582911, 69, 155, 100663295, 134, 293, 805306367, 1610612735, 3221225471, 75, 518, 25769803775, 301, 8874]

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

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