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 | 2 |
| 2 | 3 |
| 3 | 7 |
| 4 | 1237 |
| 5 | 66067 |
| 6 | 525593 |
| 7 | 974167 |
| 8 | 1412473 |
| 9 | 2675759 |
| 10 | 4471237 |
| 11 | 5264333 |
| 12 | 8107961 |
| 13 | 8308271 |
| 14 | 12615151 |
| 15 | 20145407 |
| 16 | 34926433 |
| 17 | 43167569 |
| 18 | 94772749 |
| 19 | 104612297 |
| 20 | 115103327 |
| 21 | 144450221 |
| 22 | 153124973 |
| 23 | 165108557 |
| 24 | 196634723 |
| 25 | 211696049 |
| 26 | 213507241 |
| 27 | 255963131 |
| 28 | 263979101 |