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.

A133871 a(n) = the definite integral Integral_{0..1} Product_{j=1..n} 4*sin^2(Pi*j*x) dx.

Table of values

n a(n)
1 2
2 4
3 6
4 10
5 12
6 20
7 24
8 34
9 44
10 64
11 78
12 116
13 148
14 208
15 286
16 410
17 556
18 808
19 1120
20 1620
21 2308
22 3352
23 4784
24 6980
25 10064
26 14680
27 21296
28 31128
29 45276
30 66288
31 96712
32 141654
33 207156
34 303716
35 444748
36 652612
37 956884
38 1404920
39 2062080
40 3029564
41 4450120

List of values

[2, 4, 6, 10, 12, 20, 24, 34, 44, 64, 78, 116, 148, 208, 286, 410, 556, 808, 1120, 1620, 2308, 3352, 4784, 6980, 10064, 14680, 21296, 31128, 45276, 66288, 96712, 141654, 207156, 303716, 444748, 652612, 956884, 1404920, 2062080, 3029564, 4450120]