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.

A127134 Central terms of triangle A127126; a(n) = A127126(2n,n).

Table of values

n a(n)
0 1
1 2
2 18
3 284
4 6680
5 211398
6 8439235
7 407247048
8 23056215138
9 1498169721930
10 109876657252604
11 8976437481923520
12 808257688877060396
13 79516093326076500590
14 8485004019719253675540
15 976009472808194554659440

List of values

[1, 2, 18, 284, 6680, 211398, 8439235, 407247048, 23056215138, 1498169721930, 109876657252604, 8976437481923520, 808257688877060396, 79516093326076500590, 8485004019719253675540, 976009472808194554659440]