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 | 10000500001 |
| 2 | 10000900001 |
| 3 | 10001610001 |
| 4 | 10002220001 |
| 5 | 10002520001 |
| 6 | 10003630001 |
| 7 | 10006560001 |
| 8 | 10008180001 |
| 9 | 10009290001 |
| 10 | 10013031001 |
| 11 | 10013131001 |
| 12 | 10014741001 |
| 13 | 10016961001 |
| 14 | 10021512001 |