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 | 44 |
| 2 | 865 |
| 3 | 19997 |
| 4 | 449827 |
| 5 | 10203847 |
| 6 | 230659662 |
| 7 | 5221177246 |
| 8 | 118139247475 |
| 9 | 2673342943199 |
| 10 | 60493860184777 |
| 11 | 1368887903616187 |
| 12 | 30975935104352291 |
| 13 | 700940389558441876 |
| 14 | 15861259863124103232 |
| 15 | 358917220084448007191 |