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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.

A177428 Triangle T(n,m)= A141686(n,m)*(m-1)! read by rows, n>=1, 1<=m<=n.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 8
6 2
7 1
8 33
9 66
10 6
11 1
12 104
13 792
14 624
15 24
16 1
17 285
18 6040
19 18120
20 6840
21 120
22 1
23 720
24 35730
25 289920
26 428760
27 86400
28 720
29 1
30 1729
31 180306
32 3279990
33 13119960
34 10818360
35 1244880
36 5040
37 1
38 4016
39 818048
40 29646624
41 262399200
42 592932480
43 294497280

List of values

[1, 1, 1, 1, 8, 2, 1, 33, 66, 6, 1, 104, 792, 624, 24, 1, 285, 6040, 18120, 6840, 120, 1, 720, 35730, 289920, 428760, 86400, 720, 1, 1729, 180306, 3279990, 13119960, 10818360, 1244880, 5040, 1, 4016, 818048, 29646624, 262399200, 592932480, 294497280]

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

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