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 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 22 |
| 5 | 29 |
| 6 | 546 |
| 7 | 727 |
| 8 | 18488 |
| 9 | 100809 |
| 10 | 1164250 |
| 11 | 3628811 |
| 12 | 208232652 |
| 13 | 479001613 |
| 14 | 18741602894 |
| 15 | 236107872015 |
| 16 | 4796881689616 |
| 17 | 20922789888017 |
| 18 | 1618457192352018 |
| 19 | 6402373705728019 |
| 20 | 471378116297088020 |
| 21 | 6105908234409984021 |
| 22 | 153272981387362636822 |