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 | 1 |
| 2 | 216 |
| 3 | 28942 |
| 4 | 3329245 |
| 5 | 358911148 |
| 6 | 37502829018 |
| 7 | 3856945416544 |
| 8 | 393396697543644 |
| 9 | 39951066751274152 |
| 10 | 4047887027105625168 |
| 11 | 409638762069161924728 |
| 12 | 41428094401248851559736 |
| 13 | 4188336537335577744595384 |
| 14 | 423360539638841208001947048 |
| 15 | 42789587016771330584001089176 |