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.

A105278 Triangle read by rows: T(n,k) = binomial(n,k)*(n-1)!/(k-1)!.

Table of values

n a(n)
1 1
2 2
3 1
4 6
5 6
6 1
7 24
8 36
9 12
10 1
11 120
12 240
13 120
14 20
15 1
16 720
17 1800
18 1200
19 300
20 30
21 1
22 5040
23 15120
24 12600
25 4200
26 630
27 42
28 1
29 40320
30 141120
31 141120
32 58800
33 11760
34 1176
35 56
36 1
37 362880
38 1451520
39 1693440
40 846720
41 211680
42 28224
43 2016
44 72
45 1
46 3628800
47 16329600

List of values

[1, 2, 1, 6, 6, 1, 24, 36, 12, 1, 120, 240, 120, 20, 1, 720, 1800, 1200, 300, 30, 1, 5040, 15120, 12600, 4200, 630, 42, 1, 40320, 141120, 141120, 58800, 11760, 1176, 56, 1, 362880, 1451520, 1693440, 846720, 211680, 28224, 2016, 72, 1, 3628800, 16329600]