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 | 1 |
| 1 | 15 |
| 2 | 185 |
| 3 | 2304 |
| 4 | 29482 |
| 5 | 386945 |
| 6 | 5188169 |
| 7 | 70803164 |
| 8 | 980545070 |
| 9 | 13747777966 |
| 10 | 194776025482 |
| 11 | 2784380900560 |
| 12 | 40113386761524 |
| 13 | 581823363803941 |
| 14 | 8489505340500521 |
| 15 | 124528817146723876 |
| 16 | 1835299404114540102 |
| 17 | 27163404479642455346 |
| 18 | 403573421012802035630 |