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 | 16385 |
| 2 | 4799353 |
| 3 | 273218425 |
| 4 | 6371951081 |
| 5 | 84467679721 |
| 6 | 756587236945 |
| 7 | 5076269583953 |
| 8 | 27274838966065 |
| 9 | 122876792454961 |
| 10 | 479749833583241 |
| 11 | 1663668298132105 |
| 12 | 5221294850248153 |
| 13 | 15049383211257305 |
| 14 | 40304932850948641 |
| 15 | 101250520063318561 |
| 16 | 240435420597328865 |