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 | 9 |
| 3 | 61 |
| 4 | 260 |
| 5 | 927 |
| 6 | 2578 |
| 7 | 5965 |
| 8 | 12066 |
| 9 | 22135 |
| 10 | 37678 |
| 11 | 60457 |
| 12 | 92488 |
| 13 | 136043 |
| 14 | 193650 |
| 15 | 268093 |
| 16 | 362412 |
| 17 | 479903 |
| 18 | 624118 |
| 19 | 798865 |
| 20 | 1008208 |
| 21 | 1256467 |
| 22 | 1548218 |
| 23 | 1888293 |
| 24 | 2281780 |
| 25 | 2734023 |
| 26 | 3250622 |
| 27 | 3837433 |
| 28 | 4500568 |
| 29 | 5246395 |
| 30 | 6081538 |
| 31 | 7012877 |