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 | 1 |
| 2 | 1 |
| 3 | 4 |
| 4 | 6 |
| 5 | 11 |
| 6 | 28 |
| 7 | 45 |
| 8 | 86 |
| 9 | 172 |
| 10 | 344 |
| 11 | 608 |
| 12 | 1135 |
| 13 | 2206 |
| 14 | 4006 |
| 15 | 7689 |
| 16 | 13748 |
| 17 | 25502 |
| 18 | 47406 |
| 19 | 86838 |
| 20 | 157560 |
| 21 | 286642 |
| 22 | 522089 |
| 23 | 941356 |
| 24 | 1718622 |
| 25 | 3079218 |
| 26 | 5525805 |
| 27 | 9902996 |
| 28 | 17788396 |
| 29 | 31742616 |
| 30 | 56694704 |
| 31 | 100720516 |
| 32 | 178468026 |
| 33 | 317019140 |
| 34 | 560079704 |
| 35 | 991061957 |