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 | 31 |
| 4 | 13 |
| 5 | 523 |
| 6 | 31 |
| 7 | 3833 |
| 8 | 491 |
| 9 | 5483 |
| 10 | 523 |
| 11 | 18149 |
| 12 | 661 |
| 13 | 44657 |
| 14 | 3833 |
| 15 | 18869 |
| 16 | 7333 |
| 17 | 165479 |
| 18 | 5483 |
| 19 | 153953 |
| 20 | 20411 |
| 21 | 129127 |
| 22 | 18149 |
| 23 | 538651 |
| 24 | 7079 |
| 25 | 932257 |
| 26 | 44657 |
| 27 | 417037 |
| 28 | 52639 |
| 29 | 2223773 |
| 30 | 18869 |
| 31 | 3124217 |
| 32 | 175229 |
| 33 | 1993763 |
| 34 | 165479 |
| 35 | 2794811 |
| 36 | 50461 |
| 37 | 8678963 |
| 38 | 153953 |