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.
n | a(n) |
---|---|
0 | 1 |
1 | 20 |
2 | 230 |
3 | 2000 |
4 | 14627 |
5 | 95060 |
6 | 567240 |
7 | 3174400 |
8 | 16904053 |
9 | 86549620 |
10 | 429352330 |
11 | 2075659600 |
12 | 9822847079 |
13 | 45665147700 |
14 | 209129160300 |
15 | 945597624000 |
16 | 4229196800505 |
17 | 18738054705300 |
18 | 82347219011950 |
19 | 359322115058000 |
20 | 1558151553849131 |
21 | 6719660438870420 |
22 | 28838298857544080 |