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 | 12 |
| 3 | 35 |
| 4 | 81 |
| 5 | 394 |
| 6 | 1213 |
| 7 | 5334 |
| 8 | 8867 |
| 9 | 12161 |
| 10 | 41383 |
| 11 | 377554 |
| 12 | 1111610 |
| 13 | 1412109 |
| 14 | 5222771 |
| 15 | 15533191 |
| 16 | 47449148 |
| 17 | 261086410 |
| 18 | 1051111813 |
| 19 | 1051210871 |
| 20 | 8141051115 |
| 21 | 62229944156 |
| 22 | 331815899551 |
| 23 | 562261184411 |
| 24 | 1813856119649 |
| 25 | 9613171814106 |
| 26 | 61184872912852 |
| 27 | 299411131172101 |