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.

A329238 Carmichael quotients to base 2: a(n) = (2^lambda(2*n-1)-1)/(2*n-1), where lambda is the Carmichael lambda function (A002322).

Table of values

n a(n)
1 1
2 1
3 3
4 9
5 7
6 93
7 315
8 1
9 3855
10 13797
11 3
12 182361
13 41943
14 9709
15 9256395
16 34636833
17 31
18 117
19 1857283155
20 105
21 26817356775
22 102280151421
23 91
24 1497207322929
25 89756051247
26 1285
27 84973577874915
28 19065
29 4599
30 4885260612740877
31 18900352534538475
32 1
33 63
34 1101298153654301589

List of values

[1, 1, 3, 9, 7, 93, 315, 1, 3855, 13797, 3, 182361, 41943, 9709, 9256395, 34636833, 31, 117, 1857283155, 105, 26817356775, 102280151421, 91, 1497207322929, 89756051247, 1285, 84973577874915, 19065, 4599, 4885260612740877, 18900352534538475, 1, 63, 1101298153654301589]