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 | 16 |
| 2 | 162 |
| 3 | 2500 |
| 4 | 14406 |
| 5 | 146410 |
| 6 | 342732 |
| 7 | 1336336 |
| 8 | 2345778 |
| 9 | 6156502 |
| 10 | 19803868 |
| 11 | 27705630 |
| 12 | 67469796 |
| 13 | 113030440 |
| 14 | 143589642 |
| 15 | 224465326 |
| 16 | 410305012 |
| 17 | 702806938 |
| 18 | 830750460 |
| 19 | 1329973986 |
| 20 | 1778817670 |
| 21 | 2044673352 |
| 22 | 3038106318 |
| 23 | 3891582322 |