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 | 5 |
| 2 | 9 |
| 3 | 13 |
| 4 | 24 |
| 5 | 41 |
| 6 | 91 |
| 7 | 185 |
| 8 | 435 |
| 9 | 1009 |
| 10 | 2445 |
| 11 | 5945 |
| 12 | 14813 |
| 13 | 36977 |
| 14 | 93465 |
| 15 | 237313 |
| 16 | 606465 |
| 17 | 1556033 |
| 18 | 4010205 |
| 19 | 10367897 |
| 20 | 26891385 |
| 21 | 69930457 |
| 22 | 182302161 |
| 23 | 476262761 |
| 24 | 1246710303 |
| 25 | 3269321393 |
| 26 | 8587489185 |
| 27 | 22590646417 |
| 28 | 59511087087 |
| 29 | 156973954865 |
| 30 | 414552479249 |
| 31 | 1096017973385 |
| 32 | 2900753690865 |
| 33 | 7684758676201 |
| 34 | 20377462520193 |