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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.

A171177 Triangle read by rows in which row n lists 3n-1 together with the first 2n-1 numbers <> 0 of A038608, in reverse order.

Table of values

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

List of values

[2, -1, 5, -3, 2, -1, 8, -5, 4, -3, 2, -1, 11, -7, 6, -5, 4, -3, 2, -1, 14, -9, 8, -7, 6, -5, 4, -3, 2, -1, 17, -11, 10, -9, 8, -7, 6, -5, 4, -3, 2, -1, 20, -13, 12, -11, 10, -9, 8, -7, 6, -5, 4, -3, 2, -1, 23, -15, 14, -13, 12, -11, 10, -9, 8, -7, 6, -5, 4, -3, 2, -1, 26, -17, 16, -15]

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