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 | 5 |
| 2 | 23 |
| 3 | 173 |
| 4 | 2693 |
| 5 | 32587 |
| 6 | 495637 |
| 7 | 4447627 |
| 8 | 35303123 |
| 9 | 717591877 |
| 10 | 928090627 |
| 11 | 69692326373 |
| 12 | 745041171877 |
| 13 | 5012236328123 |
| 14 | 64215009765623 |
| 15 | 945336806640623 |
| 16 | 8885812685546873 |