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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.

A210215 Triangle of coefficients of polynomials u(n,x) jointly generated with A210216; see the Formula section.

Table of values

n a(n)
1 1
2 2
3 1
4 2
5 4
6 1
7 2
8 5
9 7
10 1
11 2
12 5
13 12
14 11
15 1
16 2
17 5
18 13
19 26
20 16
21 1
22 2
23 5
24 13
25 33
26 51
27 22
28 1
29 2
30 5
31 13
32 34
33 79
34 92
35 29
36 1
37 2
38 5
39 13
40 34
41 88
42 176
43 155
44 37
45 1
46 2
47 5
48 13
49 34
50 89
51 221
52 365
53 247
54 46
55 1
56 2
57 5
58 13
59 34
60 89
61 232
62 530
63 709
64 376
65 56
66 1
67 2
68 5
69 13
70 34
71 89
72 233
73 596

List of values

[1, 2, 1, 2, 4, 1, 2, 5, 7, 1, 2, 5, 12, 11, 1, 2, 5, 13, 26, 16, 1, 2, 5, 13, 33, 51, 22, 1, 2, 5, 13, 34, 79, 92, 29, 1, 2, 5, 13, 34, 88, 176, 155, 37, 1, 2, 5, 13, 34, 89, 221, 365, 247, 46, 1, 2, 5, 13, 34, 89, 232, 530, 709, 376, 56, 1, 2, 5, 13, 34, 89, 233, 596]

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