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 | 40353607 |
| 2 | 2357947691 |
| 3 | 38443359375 |
| 4 | 322687697779 |
| 5 | 1801152661463 |
| 6 | 7625597484987 |
| 7 | 26439622160671 |
| 8 | 78815638671875 |
| 9 | 208728361158759 |
| 10 | 502592611936843 |
| 11 | 1119130473102767 |
| 12 | 2334165173090451 |
| 13 | 4605366583984375 |
| 14 | 8662995818654939 |
| 15 | 15633814156853823 |
| 16 | 27206534396294947 |