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 | 19683 |
| 1 | 387420489 |
| 2 | 38443359375 |
| 3 | 794280046581 |
| 4 | 7625597484987 |
| 5 | 46411484401953 |
| 6 | 208728361158759 |
| 7 | 756680642578125 |
| 8 | 2334165173090451 |
| 9 | 6351461955384057 |
| 10 | 15633814156853823 |
| 11 | 35452087835576229 |
| 12 | 75084686279296875 |
| 13 | 150094635296999121 |
| 14 | 285544154243029527 |
| 15 | 520411082988487293 |