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.

A209141 Triangle of coefficients of polynomials u(n,x) jointly generated with A209142; see the Formula section.

Table of values

n a(n)
1 1
2 2
3 1
4 4
5 5
6 2
7 8
8 16
9 12
10 3
11 16
12 44
13 49
14 25
15 5
16 32
17 112
18 166
19 127
20 50
21 8
22 64
23 272
24 504
25 513
26 301
27 96
28 13
29 128
30 640
31 1424
32 1808
33 1408
34 670
35 180
36 21
37 256
38 1472
39 3824
40 5816
41 5641
42 3562
43 1427
44 331
45 34
46 512
47 3328
48 9888
49 17520
50 20330
51 15981
52 8494
53 2939

List of values

[1, 2, 1, 4, 5, 2, 8, 16, 12, 3, 16, 44, 49, 25, 5, 32, 112, 166, 127, 50, 8, 64, 272, 504, 513, 301, 96, 13, 128, 640, 1424, 1808, 1408, 670, 180, 21, 256, 1472, 3824, 5816, 5641, 3562, 1427, 331, 34, 512, 3328, 9888, 17520, 20330, 15981, 8494, 2939]