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 | 216 |
| 3 | 4048 |
| 4 | 78050 |
| 5 | 1679508 |
| 6 | 40353460 |
| 7 | 1073741632 |
| 8 | 31381059366 |
| 9 | 999999999700 |
| 10 | 34522712143568 |
| 11 | 1283918464548432 |
| 12 | 51185893014090250 |
| 13 | 2177953337809370548 |
| 14 | 98526125335693358700 |
| 15 | 4722366482869645212928 |
| 16 | 239072435685151324846286 |