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.

A318105 Triangle read by rows: T(n,k) = (4*n - 3*k)!/((n-k)!^4*k!).

Table of values

n a(n)
0 1
1 24
2 1
3 2520
4 120
5 1
6 369600
7 22680
8 360
9 1
10 63063000
11 4804800
12 113400
13 840
14 1
15 11732745024
16 1072071000
17 33633600
18 415800
19 1680
20 1
21 2308743493056
22 246387645504
23 9648639000
24 168168000
25 1247400
26 3024
27 1
28 472518347558400
29 57718587326400
30 2710264100544
31 61108047000
32 672672000
33 3243240
34 5040
35 1

List of values

[1, 24, 1, 2520, 120, 1, 369600, 22680, 360, 1, 63063000, 4804800, 113400, 840, 1, 11732745024, 1072071000, 33633600, 415800, 1680, 1, 2308743493056, 246387645504, 9648639000, 168168000, 1247400, 3024, 1, 472518347558400, 57718587326400, 2710264100544, 61108047000, 672672000, 3243240, 5040, 1]