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.

A209137 Triangle of coefficients of polynomials u(n,x) jointly generated with A209138; 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 10
9 9
10 3
11 8
12 22
13 28
14 18
15 5
16 13
17 45
18 74
19 68
20 35
21 8
22 21
23 88
24 177
25 210
26 154
27 66
28 13
29 34
30 167
31 397
32 574
33 541
34 331
35 122
36 21
37 55
38 310
39 850
40 1446
41 1656
42 1302
43 686
44 222
45 34
46 89
47 566
48 1758
49 3434
50 4614
51 4404
52 2982
53 1382
54 399
55 55
56 144
57 1020

List of values

[1, 2, 1, 3, 4, 2, 5, 10, 9, 3, 8, 22, 28, 18, 5, 13, 45, 74, 68, 35, 8, 21, 88, 177, 210, 154, 66, 13, 34, 167, 397, 574, 541, 331, 122, 21, 55, 310, 850, 1446, 1656, 1302, 686, 222, 34, 89, 566, 1758, 3434, 4614, 4404, 2982, 1382, 399, 55, 144, 1020]