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 | 5 |
| 2 | 79 |
| 3 | 1427 |
| 4 | 28447 |
| 5 | 599435 |
| 6 | 13100065 |
| 7 | 293737085 |
| 8 | 6713171455 |
| 9 | 155700711995 |
| 10 | 3653740285729 |
| 11 | 86561367835805 |
| 12 | 2067026079739921 |
| 13 | 49689509437820933 |
| 14 | 1201321507453119103 |
| 15 | 29187308928225658787 |
| 16 | 712192597620218620735 |