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 | 17 |
| 1 | 18 |
| 2 | 629 |
| 3 | 647 |
| 4 | 22627 |
| 5 | 23274 |
| 6 | 813943 |
| 7 | 837217 |
| 8 | 29279321 |
| 9 | 30116538 |
| 10 | 1053241613 |
| 11 | 1083358151 |
| 12 | 37887418747 |
| 13 | 38970776898 |
| 14 | 1362893833279 |
| 15 | 1401864610177 |
| 16 | 49026290579297 |
| 17 | 50428155189474 |
| 18 | 1763583567021413 |
| 19 | 1814011722210887 |
| 20 | 63439982122191571 |
| 21 | 65253993844402458 |