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 | 10 |
| 2 | 100 |
| 3 | 648 |
| 4 | 3096 |
| 5 | 12032 |
| 6 | 40182 |
| 7 | 119367 |
| 8 | 322885 |
| 9 | 808618 |
| 10 | 1898050 |
| 11 | 4215105 |
| 12 | 8921265 |
| 13 | 18101023 |
| 14 | 35375831 |
| 15 | 66857059 |
| 16 | 122591129 |
| 17 | 218705294 |
| 18 | 380533212 |
| 19 | 647088610 |
| 20 | 1077366434 |
| 21 | 1759087854 |
| 22 | 2820672704 |
| 23 | 4447425227 |
| 24 | 6903161705 |
| 25 | 10558797550 |
| 26 | 15929753130 |
| 27 | 23724438995 |
| 28 | 34906549843 |