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.

A104033 Triangle, read by rows, equal to the matrix inverse of triangle A103327, where A103327(n,k) = binomial(2*n+1,2*k+1).

Table of values

n a(n)
0 1
1 -3
2 1
3 25
4 -10
5 1
6 -427
7 175
8 -21
9 1
10 12465
11 -5124
12 630
13 -36
14 1
15 -555731
16 228525
17 -28182
18 1650
19 -55
20 1
21 35135945
22 -14449006
23 1782495
24 -104676
25 3575
26 -78
27 1
28 -2990414715
29 1229758075
30 -151714563
31 8912475
32 -305305
33 6825
34 -105
35 1
36 329655706465
37 -135565467080
38 16724709820
39 -982532408

List of values

[1, -3, 1, 25, -10, 1, -427, 175, -21, 1, 12465, -5124, 630, -36, 1, -555731, 228525, -28182, 1650, -55, 1, 35135945, -14449006, 1782495, -104676, 3575, -78, 1, -2990414715, 1229758075, -151714563, 8912475, -305305, 6825, -105, 1, 329655706465, -135565467080, 16724709820, -982532408]