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 | 190 |
| 3 | 4531 |
| 4 | 99232 |
| 5 | 2125044 |
| 6 | 45190209 |
| 7 | 958768567 |
| 8 | 20325471335 |
| 9 | 430773893366 |
| 10 | 9128872855695 |
| 11 | 193450867955197 |
| 12 | 4099389985205820 |
| 13 | 86869246502331992 |
| 14 | 1840823999333339814 |
| 15 | 39008411877876819180 |
| 16 | 826616742911186406242 |