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 | 1 |
| 11 | 3 |
| 12 | 9 |
| 13 | 22 |
| 14 | 51 |
| 15 | 97 |
| 16 | 188 |
| 17 | 330 |
| 18 | 568 |
| 19 | 918 |
| 20 | 1452 |
| 21 | 2233 |
| 22 | 3344 |
| 23 | 4884 |
| 24 | 7004 |
| 25 | 9856 |
| 26 | 13653 |
| 27 | 18699 |
| 28 | 25080 |
| 29 | 33462 |
| 30 | 43918 |
| 31 | 57304 |
| 32 | 73668 |
| 33 | 94482 |
| 34 | 119262 |
| 35 | 150285 |
| 36 | 187231 |
| 37 | 232560 |
| 38 | 285660 |
| 39 | 350746 |
| 40 | 425627 |
| 41 | 516477 |
| 42 | 620731 |
| 43 | 745503 |
| 44 | 887796 |
| 45 | 1056669 |
| 46 | 1247521 |
| 47 | 1472460 |
| 48 | 1726054 |
| 49 | 2021327 |