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 | 2 |
| 2 | 3 |
| 3 | 4 |
| 4 | 5 |
| 5 | 6 |
| 6 | 7 |
| 7 | 8 |
| 8 | 10 |
| 9 | 19 |
| 10 | 56 |
| 11 | 177 |
| 12 | 508 |
| 13 | 1301 |
| 14 | 3018 |
| 15 | 6451 |
| 16 | 12887 |
| 17 | 24328 |
| 18 | 43777 |
| 19 | 75602 |
| 20 | 125991 |
| 21 | 203512 |
| 22 | 319793 |
| 23 | 490338 |
| 24 | 735496 |
| 25 | 1081601 |
| 26 | 1562302 |
| 27 | 2220104 |
| 28 | 3108162 |
| 29 | 4292581 |
| 30 | 5857016 |
| 31 | 7920222 |
| 32 | 10719709 |
| 33 | 14991758 |
| 34 | 23535855 |
| 35 | 47071676 |
| 36 | 124403657 |
| 37 | 386938194 |
| 38 | 1252225819 |