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.

A015015 q-factorial numbers for q=-3.

Table of values

n a(n)
0 1
1 1
2 -2
3 -14
4 280
5 17080
6 -3108560
7 -1700382320
8 2788627004800
9 13722833490620800
10 -202576467988544249600
11 -8971504037808659182035200
12 1191954026463258458925196672000
13 475090227821752019816863814722432000
14 -568085339196037403679856371543830284544000
15 -2037851067068183667490280132124059680133919488000

List of values

[1, 1, -2, -14, 280, 17080, -3108560, -1700382320, 2788627004800, 13722833490620800, -202576467988544249600, -8971504037808659182035200, 1191954026463258458925196672000, 475090227821752019816863814722432000, -568085339196037403679856371543830284544000, -2037851067068183667490280132124059680133919488000]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.