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 | 61 |
| 2 | 1951 |
| 3 | 10717 |
| 4 | 66157 |
| 5 | 97216 |
| 6 | 408751 |
| 7 | 548197 |
| 8 | 657088 |
| 9 | 681352 |
| 10 | 775717 |
| 11 | 857311 |
| 12 | 1199554 |
| 13 | 1259566 |
| 14 | 1536388 |
| 15 | 2116933 |
| 16 | 2247271 |
| 17 | 2310082 |
| 18 | 2406040 |
| 19 | 2758237 |
| 20 | 6547813 |
| 21 | 8596861 |
| 22 | 9525733 |
| 23 | 12462784 |
| 24 | 13952554 |
| 25 | 23289838 |
| 26 | 23351461 |
| 27 | 24290791 |
| 28 | 26010241 |
| 29 | 34502776 |
| 30 | 36514861 |
| 31 | 36841804 |