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 | 9 |
| 3 | 15 |
| 4 | 536 |
| 5 | 545 |
| 6 | 559 |
| 7 | 784 |
| 8 | 1029 |
| 9 | 1296 |
| 10 | 9864 |
| 11 | 19972 |
| 12 | 25281 |
| 13 | 61372 |
| 14 | 71919 |
| 15 | 254305 |
| 16 | 264196 |
| 17 | 501809 |
| 18 | 577720 |
| 19 | 4825277 |
| 20 | 5615100 |
| 21 | 8943039 |
| 22 | 23666905 |
| 23 | 23765244 |
| 24 | 24555772 |
| 25 | 126237882 |
| 26 | 157076310 |
| 27 | 264463290 |
| 28 | 341853680 |
| 29 | 1219695647 |
| 30 | 95714023805 |
| 31 | 220113045816 |