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.

A020920 Expansion of 1/(1-4*x)^(9/2).

Table of values

n a(n)
0 1
1 18
2 198
3 1716
4 12870
5 87516
6 554268
7 3325608
8 19122246
9 106234700
10 573667380
11 3024791640
12 15628090140
13 79342611480
14 396713057400
15 1957117749840
16 9540949030470
17 46021048264620
18 219878341708740
19 1041528987041400
20 4895186239094580
21 22844202449108040

List of values

[1, 18, 198, 1716, 12870, 87516, 554268, 3325608, 19122246, 106234700, 573667380, 3024791640, 15628090140, 79342611480, 396713057400, 1957117749840, 9540949030470, 46021048264620, 219878341708740, 1041528987041400, 4895186239094580, 22844202449108040]