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.

A209125 Triangle of coefficients of polynomials u(n,x) jointly generated with A164975; see the Formula section.

Table of values

n a(n)
1 1
2 2
3 1
4 3
5 4
6 2
7 5
8 9
9 9
10 4
11 8
12 20
13 25
14 20
15 8
16 13
17 40
18 65
19 65
20 44
21 16
22 21
23 78
24 150
25 190
26 162
27 96
28 32
29 34
30 147
31 331
32 490
33 521
34 392
35 208
36 64
37 55
38 272
39 697
40 1192
41 1473
42 1368
43 928
44 448
45 128
46 89
47 495
48 1425
49 2745
50 3888
51 4185
52 3480
53 2160
54 960
55 256
56 144
57 890

List of values

[1, 2, 1, 3, 4, 2, 5, 9, 9, 4, 8, 20, 25, 20, 8, 13, 40, 65, 65, 44, 16, 21, 78, 150, 190, 162, 96, 32, 34, 147, 331, 490, 521, 392, 208, 64, 55, 272, 697, 1192, 1473, 1368, 928, 448, 128, 89, 495, 1425, 2745, 3888, 4185, 3480, 2160, 960, 256, 144, 890]