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 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 10 |
| 5 | 21 |
| 6 | 13 |
| 7 | 48 |
| 8 | 105 |
| 9 | 80 |
| 10 | 29 |
| 11 | 264 |
| 12 | 628 |
| 13 | 553 |
| 14 | 232 |
| 15 | 47 |
| 16 | 1730 |
| 17 | 4378 |
| 18 | 4235 |
| 19 | 2059 |
| 20 | 543 |
| 21 | 73 |
| 22 | 13024 |
| 23 | 34620 |
| 24 | 36078 |
| 25 | 19553 |
| 26 | 6063 |
| 27 | 1095 |
| 28 | 107 |
| 29 | 110542 |
| 30 | 306362 |
| 31 | 339554 |
| 32 | 200769 |
| 33 | 70350 |
| 34 | 15166 |
| 35 | 2000 |
| 36 | 151 |
| 37 | 1044900 |
| 38 | 3003012 |
| 39 | 3507070 |
| 40 | 2228398 |
| 41 | 861305 |
| 42 | 212514 |