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.

A025232 a(n) = a(1)*a(n-1) + a(2)*a(n-2) + ...+ a(n-1)*a(1) for n >= 3, with initial terms 3,2.

Table of values

n a(n)
1 3
2 2
3 12
4 76
5 504
6 3472
7 24672
8 179792
9 1337376
10 10117312
11 77618304
12 602528640
13 4724294400
14 37361809920
15 297683352576
16 2387325283584
17 19255919325696
18 156110855965696
19 1271401468151808

List of values

[3, 2, 12, 76, 504, 3472, 24672, 179792, 1337376, 10117312, 77618304, 602528640, 4724294400, 37361809920, 297683352576, 2387325283584, 19255919325696, 156110855965696, 1271401468151808]