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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 5 |
| 7 | 6 |
| 8 | 8 |
| 9 | 10 |
| 10 | 12 |
| 11 | 13 |
| 12 | 24 |
| 13 | 75 |
| 14 | 192 |
| 15 | 305 |
| 16 | 657 |
| 17 | 1616 |
| 18 | 2454 |
| 19 | 4962 |
| 20 | 13360 |
| 21 | 20069 |
| 22 | 40221 |
| 23 | 120860 |
| 24 | 181335 |
| 25 | 362760 |
| 26 | 1209464 |
| 27 | 1814257 |
| 28 | 3628656 |
| 29 | 13305447 |
| 30 | 19958232 |
| 31 | 39916629 |
| 32 | 159667010 |
| 33 | 239500605 |
| 34 | 479001404 |
| 35 | 2075673390 |
| 36 | 3113510176 |