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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.

A050307 Matrix 4th power of inverse partition triangle A038498.

Table of values

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

List of values

[1, -4, 1, 6, -4, 1, 6, 2, -4, 1, -19, 12, 2, -4, 1, -5, -7, 8, 2, -4, 1, 11, -18, -1, 8, 2, -4, 1, 16, -7, -6, -5, 8, 2, -4, 1, 26, 13, -24, 0, -5, 8, 2, -4, 1, -10, 19, 11, -12, -4, -5, 8, 2, -4, 1, -28, 23, 18, -6, -6, -4, -5, 8, 2, -4, 1, -38, 14, 4, 12, 6, -10, -4, -5, 8, 2, -4]

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