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 | 0 |
1 | 1 |
2 | 1 |
3 | 4 |
4 | 21 |
5 | 156 |
6 | 1470 |
7 | 16843 |
8 | 227367 |
9 | 3533974 |
10 | 62163477 |
11 | 1220852524 |
12 | 26480355110 |
13 | 628693388909 |
14 | 16216901961481 |
15 | 451609382251836 |
16 | 13504072800481613 |
17 | 431544662700594212 |
18 | 14677503631085378170 |
19 | 529370720888418692643 |
20 | 20180856622352239827687 |