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 | 6 |
| 2 | 10 |
| 3 | 30 |
| 4 | 66 |
| 5 | 946 |
| 6 | 3310 |
| 7 | 10470 |
| 8 | 36370 |
| 9 | 60126 |
| 10 | 104106 |
| 11 | 128766 |
| 12 | 170710 |
| 13 | 323670 |
| 14 | 369370 |
| 15 | 398266 |
| 16 | 596926 |
| 17 | 813430 |
| 18 | 1145166 |
| 19 | 1494690 |
| 20 | 2384866 |
| 21 | 5960746 |
| 22 | 6376126 |
| 23 | 8178346 |
| 24 | 18327310 |
| 25 | 31380922 |
| 26 | 34102630 |
| 27 | 37105762 |
| 28 | 40796526 |
| 29 | 41950966 |
| 30 | 41983446 |