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 | 296 |
| 2 | 17723 |
| 3 | 442089 |
| 4 | 8073038 |
| 5 | 137489538 |
| 6 | 2425304290 |
| 7 | 45275725025 |
| 8 | 883012703273 |
| 9 | 17667432461262 |
| 10 | 358042017265316 |
| 11 | 7298750316970616 |
| 12 | 149179000331610043 |
| 13 | 3052840234754205390 |
| 14 | 62514535525552969948 |
| 15 | 1280625241031012026560 |