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 | 1 |
2 | 2 |
3 | 6 |
4 | 26 |
5 | 164 |
6 | 1540 |
7 | 22068 |
8 | 492616 |
9 | 17378968 |
10 | 977896328 |
11 | 88256247312 |
12 | 12819022165520 |
13 | 3002745820555664 |
14 | 1135759674922075168 |
15 | 694219521332053782624 |
16 | 686053892556368634929824 |
17 | 1096476587053610841771551296 |
18 | 2834651494015025836540377942080 |