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.

A001194 a(n) = A059366(n,n-2) = A059366(n,2) for n >= 2, where the triangle A059366 arises in the expansion of a trigonometric integral.

Table of values

n a(n)
2 3
3 9
4 54
5 450
6 4725
7 59535
8 873180
9 14594580
10 273648375
11 5685805125
12 129636356850
13 3217338674550
14 86331921100425
15 2490343877896875
16 76844896803675000
17 2525635608280785000
18 88081541838792376875
19 3248654513701342370625

List of values

[3, 9, 54, 450, 4725, 59535, 873180, 14594580, 273648375, 5685805125, 129636356850, 3217338674550, 86331921100425, 2490343877896875, 76844896803675000, 2525635608280785000, 88081541838792376875, 3248654513701342370625]