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 | 534 |
| 2 | 10797 |
| 3 | 201770 |
| 4 | 3831324 |
| 5 | 72592860 |
| 6 | 1376627608 |
| 7 | 26108240340 |
| 8 | 495215814566 |
| 9 | 9393691937690 |
| 10 | 178194216929170 |
| 11 | 3380332407037684 |
| 12 | 64125402470512942 |
| 13 | 1216476053110547726 |
| 14 | 23076960013228726054 |
| 15 | 437778595866783333858 |