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.

A209567 Triangle of coefficients of polynomials u(n,x) jointly generated with A209568; see the Formula section.

Table of values

n a(n)
1 1
2 1
3 1
4 2
5 3
6 1
7 3
8 7
9 6
10 1
11 4
12 13
13 18
14 10
15 1
16 5
17 21
18 41
19 39
20 15
21 1
22 6
23 31
24 79
25 108
26 75
27 21
28 1
29 7
30 43
31 136
32 245
33 250
34 132
35 28
36 1
37 8
38 57
39 216
40 486
41 661
42 524
43 217
44 36
45 1
46 9
47 73
48 323
49 875
50 1497
51 1601
52 1015
53 338
54 45
55 1
56 10
57 91
58 461
59 1464
60 3031
61 4109
62 3556
63 1844

List of values

[1, 1, 1, 2, 3, 1, 3, 7, 6, 1, 4, 13, 18, 10, 1, 5, 21, 41, 39, 15, 1, 6, 31, 79, 108, 75, 21, 1, 7, 43, 136, 245, 250, 132, 28, 1, 8, 57, 216, 486, 661, 524, 217, 36, 1, 9, 73, 323, 875, 1497, 1601, 1015, 338, 45, 1, 10, 91, 461, 1464, 3031, 4109, 3556, 1844]