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 | 1 |
| 1 | 254 |
| 2 | 6050 |
| 3 | 52670 |
| 4 | 266114 |
| 5 | 963902 |
| 6 | 2796194 |
| 7 | 6927230 |
| 8 | 15257090 |
| 9 | 30683774 |
| 10 | 57405602 |
| 11 | 101263934 |
| 12 | 170126210 |
| 13 | 274309310 |
| 14 | 427043234 |
| 15 | 644975102 |
| 16 | 948713474 |
| 17 | 1363412990 |
| 18 | 1919399330 |
| 19 | 2652834494 |
| 20 | 3606422402 |
| 21 | 4830154814 |
| 22 | 6382097570 |
| 23 | 8329217150 |
| 24 | 10748247554 |