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 | 4 |
| 3 | 11 |
| 4 | 34 |
| 5 | 103 |
| 6 | 306 |
| 7 | 901 |
| 8 | 2636 |
| 9 | 7685 |
| 10 | 22372 |
| 11 | 65111 |
| 12 | 189590 |
| 13 | 552547 |
| 14 | 1612154 |
| 15 | 4709369 |
| 16 | 13773368 |
| 17 | 40329465 |
| 18 | 118217992 |
| 19 | 346891115 |
| 20 | 1018872626 |
| 21 | 2995250535 |
| 22 | 8812601062 |
| 23 | 25948130525 |
| 24 | 76456539156 |
| 25 | 225427875325 |
| 26 | 665066293480 |