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.

A054119 a(n) = n! + (n-1)! + (n-2)!.

Table of values

n a(n)
0 1
1 2
2 4
3 9
4 32
5 150
6 864
7 5880
8 46080
9 408240
10 4032000
11 43908480
12 522547200
13 6745939200
14 93884313600
15 1401079680000
16 22317642547200
17 377917892352000
18 6778983923712000
19 128403161542656000
20 2560949482291200000
21 53645489280294912000
22 1177524571957493760000
23 27027108408834293760000

List of values

[1, 2, 4, 9, 32, 150, 864, 5880, 46080, 408240, 4032000, 43908480, 522547200, 6745939200, 93884313600, 1401079680000, 22317642547200, 377917892352000, 6778983923712000, 128403161542656000, 2560949482291200000, 53645489280294912000, 1177524571957493760000, 27027108408834293760000]

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

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