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.

A052660 E.g.f. (2-2x-x^2)/((1-x)(1-x-x^2)).

Table of values

n a(n)
0 2
1 2
2 6
3 24
4 144
5 1080
6 10080
7 110880
8 1411200
9 20321280
10 326592000
11 5787936000
12 112086374400
13 2353813862400
14 53265935923200
15 1291982275584000
16 33434618241024000
17 919452001628160000

List of values

[2, 2, 6, 24, 144, 1080, 10080, 110880, 1411200, 20321280, 326592000, 5787936000, 112086374400, 2353813862400, 53265935923200, 1291982275584000, 33434618241024000, 919452001628160000]

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

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