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 | 3 |
| 4 | 4 |
| 5 | 11 |
| 6 | 17 |
| 7 | 46 |
| 8 | 75 |
| 9 | 202 |
| 10 | 341 |
| 11 | 914 |
| 12 | 1581 |
| 13 | 4222 |
| 14 | 7436 |
| 15 | 19794 |
| 16 | 35357 |
| 17 | 93859 |
| 18 | 169558 |
| 19 | 449039 |
| 20 | 818793 |
| 21 | 2163827 |
| 22 | 3976636 |
| 23 | 10489341 |
| 24 | 19406704 |
| 25 | 51103471 |
| 26 | 95099113 |
| 27 | 250040802 |
| 28 | 467679257 |
| 29 | 1227941119 |
| 30 | 2307128946 |
| 31 | 6049886572 |
| 32 | 11412695367 |
| 33 | 29891913576 |
| 34 | 56593284153 |
| 35 | 148067307799 |