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 | 1 |
| 1 | 19 |
| 2 | 151 |
| 3 | 1621 |
| 4 | 2731 |
| 5 | 3631 |
| 6 | 4129 |
| 7 | 7789 |
| 8 | 11719 |
| 9 | 12601 |
| 10 | 14461 |
| 11 | 15439 |
| 12 | 17491 |
| 13 | 20809 |
| 14 | 28309 |
| 15 | 29671 |
| 16 | 32491 |
| 17 | 41719 |
| 18 | 59659 |
| 19 | 69829 |
| 20 | 78541 |
| 21 | 83089 |
| 22 | 85411 |
| 23 | 92569 |
| 24 | 97501 |
| 25 | 115771 |
| 26 | 132679 |
| 27 | 138571 |