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 | 54 |
| 3 | 71 |
| 4 | 81 |
| 5 | 196 |
| 6 | 424 |
| 7 | 451 |
| 8 | 2394 |
| 9 | 9057 |
| 10 | 51737 |
| 11 | 52141 |
| 12 | 104439 |
| 13 | 227914 |
| 14 | 228088 |
| 15 | 1019555 |
| 16 | 1096369 |
| 17 | 1202713 |
| 18 | 1687563 |
| 19 | 1954556 |
| 20 | 3332130 |
| 21 | 3652731 |
| 22 | 4177592 |
| 23 | 31669012 |
| 24 | 79937731 |
| 25 | 81478913 |
| 26 | 148341053 |
| 27 | 168763202 |
| 28 | 182573136 |
| 29 | 342393476 |
| 30 | 773367191 |
| 31 | 1450679282 |
| 32 | 2914657310 |
| 33 | 3282344153 |