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.

A186196 a(n)=(-1)^n*(-2)^C(n,2)*A001045(n+1).

Table of values

n a(n)
0 1
1 -1
2 -6
3 40
4 704
5 -21504
6 -1409024
7 178257920
8 45902462976
9 -23433341566976
10 -24030926136672256
11 49179307930885816320
12 201512232261203141853184
13 -1650485975228872480767606784
14 -27044038098228417485446267797504

List of values

[1, -1, -6, 40, 704, -21504, -1409024, 178257920, 45902462976, -23433341566976, -24030926136672256, 49179307930885816320, 201512232261203141853184, -1650485975228872480767606784, -27044038098228417485446267797504]