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 | 3 |
3 | 20 |
4 | 165 |
5 | 1524 |
6 | 15078 |
7 | 156264 |
8 | 1674585 |
9 | 18404980 |
10 | 206325834 |
11 | 2350049208 |
12 | 27118926354 |
13 | 316381296840 |
14 | 3725407768140 |
15 | 44217602683728 |
16 | 528470024711841 |
17 | 6354463541900148 |
18 | 76818345766932450 |
19 | 933089010748085400 |
20 | 11382500895815005110 |
21 | 139387948563917844120 |