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 | 0 |
| 2 | 36 |
| 3 | 655 |
| 4 | 1258 |
| 5 | 6208 |
| 6 | 12508 |
| 7 | 45715 |
| 8 | 65455 |
| 9 | 75385 |
| 10 | 125008 |
| 11 | 235297 |
| 12 | 1250008 |
| 13 | 2857144 |
| 14 | 3214288 |
| 15 | 4210528 |
| 16 | 6545455 |
| 17 | 6792453 |
| 18 | 12500008 |
| 19 | 34615386 |
| 20 | 47058824 |
| 21 | 87671233 |
| 22 | 125000008 |
| 23 | 654545455 |
| 24 | 1250000008 |
| 25 | 9529411765 |
| 26 | 12500000008 |
| 27 | 39130434783 |
| 28 | 45714285715 |
| 29 | 65454545455 |
| 30 | 75384615385 |