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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.

A321922 Tetrangle where T(n,H(u),H(v)) is the coefficient of h(v) in s(u), where u and v are integer partitions of n, H is Heinz number, h is homogeneous symmetric functions, and s is Schur functions.

Table of values

n a(n)
1 1
2 1
3 0
4 -1
5 1
6 1
7 0
8 0
9 -1
10 1
11 0
12 1
13 -2
14 1
15 1
16 0
17 0
18 0
19 0
20 0
21 1
22 -1
23 0
24 0
25 -1
26 0
27 1
28 0
29 0
30 1
31 -1
32 -1
33 1
34 0
35 -1
36 1
37 2
38 -3
39 1
40 1
41 0
42 0
43 0
44 0
45 0
46 0
47 -1
48 1
49 0
50 0
51 0
52 0
53 0
54 0
55 -1
56 1
57 0
58 0
59 0
60 0
61 0
62 1
63 -1
64 1
65 -1
66 0
67 0
68 1
69 -1
70 -1
71 0
72 1
73 0
74 0
75 -1
76 1
77 2
78 -2
79 -1
80 1
81 0

List of values

[1, 1, 0, -1, 1, 1, 0, 0, -1, 1, 0, 1, -2, 1, 1, 0, 0, 0, 0, 0, 1, -1, 0, 0, -1, 0, 1, 0, 0, 1, -1, -1, 1, 0, -1, 1, 2, -3, 1, 1, 0, 0, 0, 0, 0, 0, -1, 1, 0, 0, 0, 0, 0, 0, -1, 1, 0, 0, 0, 0, 0, 1, -1, 1, -1, 0, 0, 1, -1, -1, 0, 1, 0, 0, -1, 1, 2, -2, -1, 1, 0]