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 | 5 |
3 | 40 |
4 | 355 |
5 | 3475 |
6 | 35836 |
7 | 384436 |
8 | 4243860 |
9 | 47905385 |
10 | 550404336 |
11 | 6415528666 |
12 | 75677788275 |
13 | 901728156490 |
14 | 10837196405920 |
15 | 131215506276862 |
16 | 1599078373019073 |
17 | 19598996116313001 |
18 | 241433496694878595 |