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.

A335748 T(n,k) = (-1)^n*(binomial(2*k,k)/(k+1))*Sum_{j=0..n} (-1)^j*binomial(k,j)*j^n. Triangle read by rows, T(n, k) for n >= 0 and 0 <= k <= n.

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 -1
5 4
6 0
7 1
8 -12
9 30
10 0
11 -1
12 28
13 -180
14 336
15 0
16 1
17 -60
18 750
19 -3360
20 5040
21 0
22 -1
23 124
24 -2700
25 21840
26 -75600
27 95040
28 0
29 1
30 -252
31 9030
32 -117600
33 705600
34 -1995840
35 2162160
36 0
37 -1
38 508
39 -28980
40 571536
41 -5292000
42 25280640
43 -60540480
44 57657600

List of values

[1, 0, 1, 0, -1, 4, 0, 1, -12, 30, 0, -1, 28, -180, 336, 0, 1, -60, 750, -3360, 5040, 0, -1, 124, -2700, 21840, -75600, 95040, 0, 1, -252, 9030, -117600, 705600, -1995840, 2162160, 0, -1, 508, -28980, 571536, -5292000, 25280640, -60540480, 57657600]