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 | 14 |
| 3 | 43 |
| 4 | 194 |
| 5 | 691 |
| 6 | 2802 |
| 7 | 10660 |
| 8 | 41839 |
| 9 | 161878 |
| 10 | 630842 |
| 11 | 2449576 |
| 12 | 9528949 |
| 13 | 37035686 |
| 14 | 144004769 |
| 15 | 559817133 |
| 16 | 2176500315 |
| 17 | 8461548011 |
| 18 | 32896646099 |
| 19 | 127893433256 |
| 20 | 497218644961 |
| 21 | 1933060065053 |
| 22 | 7515258095114 |
| 23 | 29217439753668 |
| 24 | 113590121120145 |