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 | 1479604544 |
| 2 | 8429250269 |
| 3 | 31738437018 |
| 4 | 47347345408 |
| 5 | 101802671905 |
| 6 | 213625838382 |
| 7 | 269736008608 |
| 8 | 288202145792 |
| 9 | 353946845525 |
| 10 | 355891431456 |
| 11 | 359543904192 |
| 12 | 434029382875 |
| 13 | 453675031150 |
| 14 | 467943544849 |
| 15 | 470899924000 |
| 16 | 476304861791 |
| 17 | 568433238331 |
| 18 | 690221638656 |
| 19 | 706199665600 |