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 | 8 |
| 2 | 25 |
| 3 | 25 |
| 4 | 65 |
| 5 | 257 |
| 6 | 719 |
| 7 | 2303 |
| 8 | 7695 |
| 9 | 24205 |
| 10 | 77827 |
| 11 | 251835 |
| 12 | 806047 |
| 13 | 2591353 |
| 14 | 8340665 |
| 15 | 26787773 |
| 16 | 86104127 |
| 17 | 276842555 |
| 18 | 889744085 |
| 19 | 2859889913 |
| 20 | 9193087135 |
| 21 | 29549125343 |
| 22 | 94980382961 |
| 23 | 305300890107 |
| 24 | 981337384507 |
| 25 | 3154346109841 |
| 26 | 10139134067253 |