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 | 6 |
| 3 | 31 |
| 4 | 226 |
| 5 | 1761 |
| 6 | 14838 |
| 7 | 129823 |
| 8 | 1172298 |
| 9 | 10829443 |
| 10 | 101888166 |
| 11 | 972840341 |
| 12 | 9402986626 |
| 13 | 91822503449 |
| 14 | 904557886854 |
| 15 | 8978540544171 |
| 16 | 89709076112442 |
| 17 | 901536608361003 |
| 18 | 9106692124614666 |
| 19 | 92411996211470633 |
| 20 | 941636535001651066 |
| 21 | 9630568821834643189 |
| 22 | 98829095219423607906 |