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) |
|---|---|
| 0 | 2 |
| 1 | 3 |
| 2 | 17 |
| 3 | 31 |
| 4 | 163 |
| 5 | 353 |
| 6 | 721 |
| 7 | 1185 |
| 8 | 1981 |
| 9 | 3363 |
| 10 | 5777 |
| 11 | 10039 |
| 12 | 29579 |
| 13 | 52737 |
| 14 | 94705 |
| 15 | 171147 |
| 16 | 311101 |
| 17 | 568431 |
| 18 | 1043463 |
| 19 | 1923619 |
| 20 | 3559911 |
| 21 | 6611675 |
| 22 | 12319517 |
| 23 | 23023727 |
| 24 | 651267929 |
| 25 | 1234823707 |
| 26 | 2345409699 |
| 27 | 4462239583 |
| 28 | 8502848523 |
| 29 | 16226083005 |
| 30 | 31007327791 |
| 31 | 59331187155 |