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) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 22 |
| 3 | 140 |
| 4 | 512 |
| 5 | 1397 |
| 6 | 3174 |
| 7 | 6352 |
| 8 | 11585 |
| 9 | 19683 |
| 10 | 31622 |
| 11 | 48558 |
| 12 | 71831 |
| 13 | 102978 |
| 14 | 143739 |
| 15 | 196069 |
| 16 | 262144 |
| 17 | 344365 |
| 18 | 445375 |
| 19 | 568056 |
| 20 | 715541 |
| 21 | 891223 |
| 22 | 1098758 |
| 23 | 1342070 |
| 24 | 1625363 |
| 25 | 1953125 |
| 26 | 2330129 |
| 27 | 2761448 |
| 28 | 3252453 |
| 29 | 3808824 |
| 30 | 4436552 |
| 31 | 5141947 |
| 32 | 5931641 |
| 33 | 6812597 |
| 34 | 7792110 |