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 | 5 |
| 2 | 35 |
| 3 | 154 |
| 4 | 504 |
| 5 | 1349 |
| 6 | 3142 |
| 7 | 6575 |
| 8 | 12688 |
| 9 | 22923 |
| 10 | 39266 |
| 11 | 64315 |
| 12 | 101460 |
| 13 | 154942 |
| 14 | 230095 |
| 15 | 333394 |
| 16 | 472735 |
| 17 | 657496 |
| 18 | 898863 |
| 19 | 1209864 |
| 20 | 1605777 |
| 21 | 2104139 |
| 22 | 2725200 |
| 23 | 3491939 |
| 24 | 4430572 |
| 25 | 5570527 |
| 26 | 6945053 |
| 27 | 8591154 |
| 28 | 10550253 |
| 29 | 12868125 |
| 30 | 15595628 |