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 | 19 |
| 3 | 175 |
| 4 | 2371 |
| 5 | 32611 |
| 6 | 481381 |
| 7 | 7343449 |
| 8 | 115321795 |
| 9 | 1849858771 |
| 10 | 30189264889 |
| 11 | 499616140189 |
| 12 | 8365213132981 |
| 13 | 141444270208645 |
| 14 | 2411829493241299 |
| 15 | 41425627536496495 |
| 16 | 716068213864217155 |
| 17 | 12447291755448613315 |