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) |
|---|---|
| 0 | 31 |
| 1 | 227 |
| 2 | 805 |
| 3 | 1354 |
| 4 | 6182 |
| 5 | 10315 |
| 6 | 18731 |
| 7 | 35149 |
| 8 | 67943 |
| 9 | 393255 |
| 10 | 655433 |
| 11 | 1181959 |
| 12 | 6291497 |
| 13 | 10485837 |
| 14 | 18874658 |
| 15 | 35653635 |
| 16 | 69337155 |
| 17 | 136446255 |
| 18 | 270666054 |
| 19 | 1610612779 |
| 20 | 2684354638 |
| 21 | 4831838504 |
| 22 | 9126807585 |
| 23 | 17716871269 |
| 24 | 34896740609 |