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.

A287696 Triangle read by rows, T(n,k) = (n!)^3 * [x^k] [z^n] hypergeom([], [1, 1], z)^x for n>=0, 0<=k<=n.

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 -3
5 4
6 0
7 46
8 -81
9 36
10 0
11 -1899
12 3916
13 -2592
14 576
15 0
16 163476
17 -375375
18 305500
19 -108000
20 14400
21 0
22 -25333590
23 63002191
24 -58725000
25 26370000
26 -5832000
27 518400
28 0
29 6412369860
30 -16976577828
31 17470973569
32 -9168390000
33 2636298000
34 -400075200
35 25401600

List of values

[1, 0, 1, 0, -3, 4, 0, 46, -81, 36, 0, -1899, 3916, -2592, 576, 0, 163476, -375375, 305500, -108000, 14400, 0, -25333590, 63002191, -58725000, 26370000, -5832000, 518400, 0, 6412369860, -16976577828, 17470973569, -9168390000, 2636298000, -400075200, 25401600]