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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.

A213542 a(n) = k AND k^k, where k=2*n+1, AND is the bitwise AND operator.

Table of values

n a(n)
0 1
1 3
2 5
3 7
4 9
5 3
6 13
7 15
8 17
9 3
10 5
11 7
12 25
13 3
14 13
15 31
16 33
17 35
18 5
19 7
20 41
21 35
22 13
23 15
24 49
25 35
26 37
27 7
28 57
29 35
30 45
31 63
32 65
33 67
34 69
35 7
36 9
37 3
38 13
39 15
40 81
41 67
42 5
43 7
44 25
45 3
46 77
47 31
48 97
49 35
50 5
51 7
52 41
53 99
54 77
55 15
56 113
57 35
58 37
59 7
60 57
61 99
62 109
63 127
64 129
65 131
66 133
67 7
68 137
69 131

List of values

[1, 3, 5, 7, 9, 3, 13, 15, 17, 3, 5, 7, 25, 3, 13, 31, 33, 35, 5, 7, 41, 35, 13, 15, 49, 35, 37, 7, 57, 35, 45, 63, 65, 67, 69, 7, 9, 3, 13, 15, 81, 67, 5, 7, 25, 3, 77, 31, 97, 35, 5, 7, 41, 99, 77, 15, 113, 35, 37, 7, 57, 99, 109, 127, 129, 131, 133, 7, 137, 131]

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

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