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.

A209579 Triangle of coefficients of polynomials u(n,x) jointly generated with A209580; see the Formula section.

Table of values

n a(n)
1 1
2 1
3 1
4 2
5 3
6 1
7 2
8 6
9 6
10 1
11 3
12 9
13 14
14 10
15 1
16 3
17 14
18 28
19 29
20 15
21 1
22 4
23 18
24 48
25 71
26 55
27 21
28 1
29 4
30 25
31 75
32 139
33 158
34 97
35 28
36 1
37 5
38 30
39 112
40 251
41 356
42 321
43 161
44 36
45 1
46 5
47 39
48 156
49 413
50 724
51 828
52 609
53 254
54 45
55 1
56 6
57 45
58 215
59 645
60 1321
61 1874
62 1782
63 1094
64 384
65 55
66 1
67 6

List of values

[1, 1, 1, 2, 3, 1, 2, 6, 6, 1, 3, 9, 14, 10, 1, 3, 14, 28, 29, 15, 1, 4, 18, 48, 71, 55, 21, 1, 4, 25, 75, 139, 158, 97, 28, 1, 5, 30, 112, 251, 356, 321, 161, 36, 1, 5, 39, 156, 413, 724, 828, 609, 254, 45, 1, 6, 45, 215, 645, 1321, 1874, 1782, 1094, 384, 55, 1, 6]