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 | 17392546081 |
| 2 | 18394765201 |
| 3 | 32798165401 |
| 4 | 61280451937 |
| 5 | 96112743805 |
| 6 | 103964580721 |
| 7 | 129386974501 |
| 8 | 165274930081 |
| 9 | 176962430851 |
| 10 | 189147932065 |
| 11 | 194687539201 |
| 12 | 206238795841 |
| 13 | 236791540801 |
| 14 | 248979435601 |
| 15 | 249817563601 |
| 16 | 294153967801 |
| 17 | 334797586201 |
| 18 | 343906758721 |
| 19 | 384073572961 |