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 | 50 |
| 2 | 530 |
| 3 | 2562 |
| 4 | 8130 |
| 5 | 20082 |
| 6 | 42130 |
| 7 | 78850 |
| 8 | 135682 |
| 9 | 218930 |
| 10 | 335762 |
| 11 | 494210 |
| 12 | 703170 |
| 13 | 972402 |
| 14 | 1312530 |
| 15 | 1735042 |
| 16 | 2252290 |
| 17 | 2877490 |
| 18 | 3624722 |
| 19 | 4508930 |
| 20 | 5545922 |
| 21 | 6752370 |
| 22 | 8145810 |
| 23 | 9744642 |
| 24 | 11568130 |
| 25 | 13636402 |