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 | 104 |
| 2 | 125 |
| 3 | 195 |
| 4 | 415 |
| 5 | 2743 |
| 6 | 2935 |
| 7 | 3535 |
| 8 | 19735 |
| 9 | 22645 |
| 10 | 108703 |
| 11 | 977353 |
| 12 | 1921033 |
| 13 | 2523433 |
| 14 | 2425175 |
| 15 | 4227575 |
| 16 | 85969345 |
| 17 | 32606935 |
| 18 | 224917033 |
| 19 | 1362833713 |
| 20 | 716210677 |
| 21 | 1557843865 |
| 22 | 6226853857 |
| 23 | 20369543065 |