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 | 31 |
| 1 | 1923 |
| 2 | 119257 |
| 3 | 7395857 |
| 4 | 458662391 |
| 5 | 28444464099 |
| 6 | 1764015436529 |
| 7 | 109397401528897 |
| 8 | 6784402910228143 |
| 9 | 420742377835673763 |
| 10 | 26092811828722001449 |
| 11 | 1618175075758599763601 |
| 12 | 100352947508861907344711 |
| 13 | 6223500920625196855135683 |
| 14 | 385957410026271066925757057 |