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 | 4 |
| 2 | 10 |
| 3 | 14290 |
| 4 | 43054 |
| 5 | 109456 |
| 6 | 315410 |
| 7 | 352600 |
| 8 | 483494 |
| 9 | 566296 |
| 10 | 685114 |
| 11 | 927070 |
| 12 | 1106116 |
| 13 | 1248796 |
| 14 | 1501174 |
| 15 | 1997986 |
| 16 | 2399204 |
| 17 | 2501404 |
| 18 | 2553100 |
| 19 | 2726840 |
| 20 | 2874680 |
| 21 | 3291760 |
| 22 | 4129394 |
| 23 | 4473766 |
| 24 | 4794520 |
| 25 | 4901144 |
| 26 | 6350306 |
| 27 | 7444070 |
| 28 | 7753456 |
| 29 | 7892504 |
| 30 | 8009536 |
| 31 | 8069540 |