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 | 146 |
| 2 | 273 |
| 3 | 3713 |
| 4 | 4779 |
| 5 | 333359 |
| 6 | 1325643 |
| 7 | 3111717139 |
| 8 | 29177760383 |
| 9 | 69142225413 |
| 10 | 3471134339561 |
| 11 | 7980350584141 |
| 12 | 1324115101168677 |
| 13 | 33147123900129853 |
| 14 | 1941131324815763997 |
| 15 | 37816317113233982621 |
| 16 | 291304010934939102849 |
| 17 | 333777134924210136703397 |
| 18 | 7409854792211363875345439 |