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 | 6 |
| 2 | 15 |
| 3 | 40 |
| 4 | 60 |
| 5 | 104 |
| 6 | 260 |
| 7 | 273 |
| 8 | 714 |
| 9 | 1092 |
| 10 | 1820 |
| 11 | 1870 |
| 12 | 4641 |
| 13 | 4895 |
| 14 | 12376 |
| 15 | 12816 |
| 16 | 19635 |
| 17 | 33552 |
| 18 | 83215 |
| 19 | 85085 |
| 20 | 87841 |
| 21 | 136136 |
| 22 | 229970 |
| 23 | 352440 |
| 24 | 582505 |
| 25 | 602070 |
| 26 | 1493064 |
| 27 | 1514513 |
| 28 | 1576239 |
| 29 | 3994320 |
| 30 | 4126648 |
| 31 | 6324552 |
| 32 | 10803704 |
| 33 | 16776144 |
| 34 | 26791505 |