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) |
|---|---|
| 10 | 4 |
| 11 | 10 |
| 12 | 28 |
| 13 | 56 |
| 14 | 113 |
| 15 | 197 |
| 16 | 340 |
| 17 | 544 |
| 18 | 856 |
| 19 | 1284 |
| 20 | 1896 |
| 21 | 2709 |
| 22 | 3816 |
| 23 | 5247 |
| 24 | 7128 |
| 25 | 9504 |
| 26 | 12540 |
| 27 | 16302 |
| 28 | 21001 |
| 29 | 26728 |
| 30 | 33748 |
| 31 | 42185 |
| 32 | 52364 |
| 33 | 64448 |
| 34 | 78832 |
| 35 | 95725 |
| 36 | 115600 |
| 37 | 138720 |
| 38 | 165648 |
| 39 | 196707 |
| 40 | 232560 |
| 41 | 273600 |
| 42 | 320601 |
| 43 | 374034 |
| 44 | 434796 |
| 45 | 503448 |
| 46 | 581020 |
| 47 | 668173 |
| 48 | 766084 |