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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.

A369117 Table read by rows. T(n, k) = [z^k] LommelR(n, n, 1/z) where LommelR are the Lommel polynomials.

Table of values

n a(n)
0 1
1 0
2 2
3 -1
4 0
5 24
6 0
7 -16
8 0
9 480
10 1
11 0
12 -360
13 0
14 13440
15 0
16 42
17 0
18 -10752
19 0
20 483840
21 -1
22 0
23 1728
24 0
25 -403200
26 0
27 21288960
28 0
29 -80
30 0
31 79200
32 0
33 -18247680
34 0
35 1107025920
36 1
37 0
38 -5280
39 0
40 4118400
41 0
42 -968647680
43 0
44 66421555200
45 0
46 130
47 0
48 -349440
49 0
50 242161920
51 0
52 -59041382400
53 0
54 4516665753600

List of values

[1, 0, 2, -1, 0, 24, 0, -16, 0, 480, 1, 0, -360, 0, 13440, 0, 42, 0, -10752, 0, 483840, -1, 0, 1728, 0, -403200, 0, 21288960, 0, -80, 0, 79200, 0, -18247680, 0, 1107025920, 1, 0, -5280, 0, 4118400, 0, -968647680, 0, 66421555200, 0, 130, 0, -349440, 0, 242161920, 0, -59041382400, 0, 4516665753600]