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 | 2 |
| 3 | 5 |
| 4 | 11 |
| 5 | 27 |
| 6 | 55 |
| 7 | 131 |
| 8 | 263 |
| 9 | 571 |
| 10 | 1168 |
| 11 | 2445 |
| 12 | 4891 |
| 13 | 10113 |
| 14 | 20227 |
| 15 | 40979 |
| 16 | 82229 |
| 17 | 165632 |
| 18 | 331265 |
| 19 | 665365 |
| 20 | 1330731 |
| 21 | 2666729 |
| 22 | 5334769 |
| 23 | 10679319 |
| 24 | 21358639 |
| 25 | 42740683 |
| 26 | 85482096 |
| 27 | 171004645 |
| 28 | 342015001 |
| 29 | 684113793 |
| 30 | 1368227587 |
| 31 | 2736633741 |
| 32 | 5473267483 |
| 33 | 10946869669 |
| 34 | 21893763789 |
| 35 | 43788190107 |