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) |
|---|---|
| 2 | 3 |
| 3 | 7 |
| 4 | 7 |
| 5 | 23 |
| 6 | 23 |
| 7 | 23 |
| 8 | 23 |
| 9 | 279 |
| 10 | 279 |
| 11 | 279 |
| 12 | 2327 |
| 13 | 6423 |
| 14 | 6423 |
| 15 | 22807 |
| 16 | 55575 |
| 17 | 55575 |
| 18 | 55575 |
| 19 | 317719 |
| 20 | 842007 |
| 21 | 842007 |
| 22 | 2939159 |
| 23 | 2939159 |
| 24 | 2939159 |
| 25 | 2939159 |
| 26 | 2939159 |
| 27 | 70048023 |
| 28 | 204265751 |
| 29 | 204265751 |
| 30 | 204265751 |
| 31 | 1278007575 |
| 32 | 3425491223 |
| 33 | 3425491223 |
| 34 | 3425491223 |
| 35 | 20605360407 |