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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.

A371026 Triangle read by rows: T(n, k) = 4^n*Sum_{j=0..k} (-1)^(k - j)*binomial(k, j)* Pochhammer(j/4, n).

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 5
5 2
6 0
7 45
8 30
9 6
10 0
11 585
12 510
13 180
14 24
15 0
16 9945
17 10350
18 4950
19 1200
20 120
21 0
22 208845
23 247590
24 144900
25 48600
26 9000
27 720
28 0
29 5221125
30 6855030
31 4655070
32 1940400
33 504000
34 75600
35 5040
36 0
37 151412625
38 216093150
39 164872260
40 80713080
41 26334000
42 5594400
43 705600
44 40320

List of values

[1, 0, 1, 0, 5, 2, 0, 45, 30, 6, 0, 585, 510, 180, 24, 0, 9945, 10350, 4950, 1200, 120, 0, 208845, 247590, 144900, 48600, 9000, 720, 0, 5221125, 6855030, 4655070, 1940400, 504000, 75600, 5040, 0, 151412625, 216093150, 164872260, 80713080, 26334000, 5594400, 705600, 40320]