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 | 11 |
| 2 | 297 |
| 3 | 8019 |
| 4 | 216513 |
| 5 | 5845851 |
| 6 | 157837977 |
| 7 | 4261625379 |
| 8 | 115063885233 |
| 9 | 3106724901291 |
| 10 | 83881572334857 |
| 11 | 2264802453041139 |
| 12 | 61149666232110753 |
| 13 | 1651040988266990331 |
| 14 | 44578106683208738937 |
| 15 | 1203608880446635951299 |