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 | 1 |
| 3 | 17 |
| 4 | 82 |
| 5 | 354 |
| 6 | 626 |
| 7 | 2275 |
| 8 | 3108 |
| 9 | 7395 |
| 10 | 9044 |
| 11 | 25333 |
| 12 | 17668 |
| 13 | 60710 |
| 14 | 50470 |
| 15 | 88388 |
| 16 | 103496 |
| 17 | 243848 |
| 18 | 129750 |
| 19 | 432345 |
| 20 | 266088 |
| 21 | 497574 |
| 22 | 497178 |
| 23 | 1151403 |
| 24 | 539912 |
| 25 | 1541770 |
| 26 | 1153724 |
| 27 | 1900089 |
| 28 | 1516844 |
| 29 | 3756718 |
| 30 | 1246568 |
| 31 | 5273999 |