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.

A326580 a(n) = (2*n+1)*denominator((2*n+1)*Bernoulli(2*n)).

Table of values

n a(n)
0 1
1 6
2 30
3 42
4 90
5 66
6 2730
7 30
8 510
9 798
10 2310
11 138
12 13650
13 54
14 870
15 14322
16 5610
17 210
18 1919190
19 78
20 13530
21 1806
22 2070
23 282
24 324870
25 1122
26 1590
27 43890
28 16530
29 354
30 56786730
31 126
32 6630
33 64722
34 690
35 4686
36 140100870
37 150
38 2310
39 3318
40 6210270
41 498
42 57873270
43 174

List of values

[1, 6, 30, 42, 90, 66, 2730, 30, 510, 798, 2310, 138, 13650, 54, 870, 14322, 5610, 210, 1919190, 78, 13530, 1806, 2070, 282, 324870, 1122, 1590, 43890, 16530, 354, 56786730, 126, 6630, 64722, 690, 4686, 140100870, 150, 2310, 3318, 6210270, 498, 57873270, 174]