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 | 36 |
| 3 | 44 |
| 4 | 476 |
| 5 | 1424 |
| 6 | 7696 |
| 7 | 28238 |
| 8 | 126482 |
| 9 | 491943 |
| 10 | 2059700 |
| 11 | 8161068 |
| 12 | 33268124 |
| 13 | 132637221 |
| 14 | 534771362 |
| 15 | 2136620867 |
| 16 | 8574987528 |
| 17 | 34285733053 |
| 18 | 137334914170 |
| 19 | 549255340746 |
| 20 | 2198311980408 |
| 21 | 8792729559738 |
| 22 | 35179581032056 |
| 23 | 140715004320059 |