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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.

A001807 a(n) = n! * binomial(n,5).

Table of values

n a(n)
5 120
6 4320
7 105840
8 2257920
9 45722880
10 914457600
11 18441561600
12 379369267200
13 8014175769600
14 174530938982400
15 3926946127104000
16 91390746230784000
17 2200993805058048000
18 54855537910677504000
19 1414489227553898496000
20 37719712734770626560000

List of values

[120, 4320, 105840, 2257920, 45722880, 914457600, 18441561600, 379369267200, 8014175769600, 174530938982400, 3926946127104000, 91390746230784000, 2200993805058048000, 54855537910677504000, 1414489227553898496000, 37719712734770626560000]

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

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