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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.

A324958 Triangle of coefficients T(n,k) of y^n in Product_{k=0..n-2} (n + (2*n + k)*y + n*y^2), as read by rows of terms k = 0..2*n-2, for n >= 1.

Table of values

n a(n)
1 1
2 2
3 4
4 2
5 9
6 39
7 60
8 39
9 9
10 64
11 432
12 1160
13 1584
14 1160
15 432
16 64
17 625
18 5750
19 22275
20 47380
21 60460
22 47380
23 22275
24 5750
25 625
26 7776
27 90720
28 461160
29 1343160
30 2479464
31 3029040
32 2479464
33 1343160
34 461160
35 90720
36 7776
37 117649
38 1663893
39 10489969
40 38937360
41 94679711
42 158760987
43 188149822
44 158760987
45 94679711
46 38937360
47 10489969
48 1663893
49 117649
50 2097152
51 34865152
52 262635520
53 1187049472
54 3593318400
55 7701010688
56 12043471488
57 13957194496
58 12043471488
59 7701010688
60 3593318400
61 1187049472
62 262635520
63 34865152
64 2097152

List of values

[1, 2, 4, 2, 9, 39, 60, 39, 9, 64, 432, 1160, 1584, 1160, 432, 64, 625, 5750, 22275, 47380, 60460, 47380, 22275, 5750, 625, 7776, 90720, 461160, 1343160, 2479464, 3029040, 2479464, 1343160, 461160, 90720, 7776, 117649, 1663893, 10489969, 38937360, 94679711, 158760987, 188149822, 158760987, 94679711, 38937360, 10489969, 1663893, 117649, 2097152, 34865152, 262635520, 1187049472, 3593318400, 7701010688, 12043471488, 13957194496, 12043471488, 7701010688, 3593318400, 1187049472, 262635520, 34865152, 2097152]