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 | 10 |
| 2 | 34 |
| 3 | 109 |
| 4 | 1054 |
| 5 | 13114114 |
| 6 | 105440870 |
| 7 | 1340887434 |
| 8 | 33454026929 |
| 9 | 44472235965 |
| 10 | 13106479203810 |
| 11 | 3345411351684270 |
| 12 | 131072391368959890 |
| 13 | 421873345684598945 |