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.

A204841 (2n)! - 2^n*n!.

Table of values

n a(n)
0 0
1 0
2 16
3 672
4 39936
5 3624960
6 478955520
7 87177646080
8 20922779566080
9 6402373519933440
10 2432902004460748800
11 1124000727695858073600
12 620448401731277448806400
13 403291461126554623829606400
14 304888344611712432172380979200
15 265252859812191015786434789376000

List of values

[0, 0, 16, 672, 39936, 3624960, 478955520, 87177646080, 20922779566080, 6402373519933440, 2432902004460748800, 1124000727695858073600, 620448401731277448806400, 403291461126554623829606400, 304888344611712432172380979200, 265252859812191015786434789376000]

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

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