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 | 1 |
| 1 | 3 |
| 2 | 10 |
| 3 | 22 |
| 4 | 49 |
| 5 | 91 |
| 6 | 168 |
| 7 | 280 |
| 8 | 462 |
| 9 | 714 |
| 10 | 1092 |
| 11 | 1596 |
| 12 | 2310 |
| 13 | 3234 |
| 14 | 4488 |
| 15 | 6072 |
| 16 | 8151 |
| 17 | 10725 |
| 18 | 14014 |
| 19 | 18018 |
| 20 | 23023 |
| 21 | 29029 |
| 22 | 36400 |
| 23 | 45136 |
| 24 | 55692 |
| 25 | 68068 |
| 26 | 82824 |
| 27 | 99960 |
| 28 | 120156 |
| 29 | 143412 |
| 30 | 170544 |
| 31 | 201552 |
| 32 | 237405 |
| 33 | 278103 |
| 34 | 324786 |
| 35 | 377454 |
| 36 | 437437 |
| 37 | 504735 |
| 38 | 580888 |
| 39 | 665896 |