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 | 17 |
| 4 | 32 |
| 5 | 61 |
| 6 | 116 |
| 7 | 221 |
| 8 | 421 |
| 9 | 802 |
| 10 | 1528 |
| 11 | 2911 |
| 12 | 5546 |
| 13 | 10566 |
| 14 | 20130 |
| 15 | 38351 |
| 16 | 73065 |
| 17 | 139201 |
| 18 | 265201 |
| 19 | 505252 |
| 20 | 962589 |
| 21 | 1833892 |
| 22 | 3493869 |
| 23 | 6656401 |
| 24 | 12681550 |
| 25 | 24160460 |
| 26 | 46029691 |
| 27 | 87694210 |
| 28 | 167072042 |
| 29 | 318300002 |
| 30 | 606414395 |
| 31 | 1155320189 |
| 32 | 2201076937 |