cp's OEIS Frontend

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.

A209128 Triangle of coefficients of polynomials u(n,x) jointly generated with A209129; see the Formula section.

Table of values

n a(n)
1 1
2 2
3 1
4 2
5 4
6 3
7 2
8 6
9 12
10 7
11 2
12 8
13 22
14 32
15 17
16 2
17 10
18 34
19 70
20 86
21 41
22 2
23 12
24 48
25 124
26 216
27 228
28 99
29 2
30 14
31 64
32 196
33 428
34 644
35 600
36 239
37 2
38 16
39 82
40 288
41 744
42 1408
43 1876
44 1568
45 577
46 2
47 18
48 102
49 402
50 1188
51 2664
52 4476
53 5364
54 4074
55 1393
56 2
57 20
58 124
59 540
60 1786

List of values

[1, 2, 1, 2, 4, 3, 2, 6, 12, 7, 2, 8, 22, 32, 17, 2, 10, 34, 70, 86, 41, 2, 12, 48, 124, 216, 228, 99, 2, 14, 64, 196, 428, 644, 600, 239, 2, 16, 82, 288, 744, 1408, 1876, 1568, 577, 2, 18, 102, 402, 1188, 2664, 4476, 5364, 4074, 1393, 2, 20, 124, 540, 1786]