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 | 34 |
| 3 | 310 |
| 4 | 1610 |
| 5 | 6035 |
| 6 | 18236 |
| 7 | 47244 |
| 8 | 109020 |
| 9 | 229845 |
| 10 | 450670 |
| 11 | 832546 |
| 12 | 1463254 |
| 13 | 2465255 |
| 14 | 4005080 |
| 15 | 6304280 |
| 16 | 9652056 |
| 17 | 14419689 |
| 18 | 21076890 |
| 19 | 30210190 |
| 20 | 42543490 |
| 21 | 58960891 |
| 22 | 80531924 |
| 23 | 108539300 |
| 24 | 144509300 |
| 25 | 190244925 |
| 26 | 247861926 |
| 27 | 319827834 |
| 28 | 409004110 |
| 29 | 518691535 |