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) |
---|---|
1 | 1 |
2 | 2 |
3 | 18 |
4 | 252 |
5 | 4410 |
6 | 88734 |
7 | 1969668 |
8 | 47104056 |
9 | 1195658550 |
10 | 31891944750 |
11 | 887565934494 |
12 | 25639389304560 |
13 | 765765781572600 |
14 | 23574635888791804 |
15 | 746297727831434376 |
16 | 24247096863466015152 |
17 | 807243935471150901066 |
18 | 27503153109167182217082 |
19 | 957899411829034037383374 |
20 | 34073454839478198669105444 |
21 | 1236879534288183156526996062 |
22 | 45788365378826408823663436974 |
23 | 1727576456033196960394178300184 |