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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.

A079621 Matrix square of unsigned Lah triangle abs(A008297(n,k)) or A105278(n,k).

Table of values

n a(n)
1 1
2 4
3 1
4 24
5 12
6 1
7 192
8 144
9 24
10 1
11 1920
12 1920
13 480
14 40
15 1
16 23040
17 28800
18 9600
19 1200
20 60
21 1
22 322560
23 483840
24 201600
25 33600
26 2520
27 84
28 1
29 5160960
30 9031680
31 4515840
32 940800
33 94080
34 4704
35 112
36 1
37 92897280
38 185794560
39 108380160
40 27095040
41 3386880
42 225792

List of values

[1, 4, 1, 24, 12, 1, 192, 144, 24, 1, 1920, 1920, 480, 40, 1, 23040, 28800, 9600, 1200, 60, 1, 322560, 483840, 201600, 33600, 2520, 84, 1, 5160960, 9031680, 4515840, 940800, 94080, 4704, 112, 1, 92897280, 185794560, 108380160, 27095040, 3386880, 225792]

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

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