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 | 5 |
| 2 | 13 |
| 3 | 21 |
| 4 | 45 |
| 5 | 93 |
| 6 | 109 |
| 7 | 85 |
| 8 | 173 |
| 9 | 477 |
| 10 | 957 |
| 11 | 733 |
| 12 | 749 |
| 13 | 1501 |
| 14 | 877 |
| 15 | 341 |
| 16 | 685 |
| 17 | 3549 |
| 18 | 12221 |
| 19 | 7133 |
| 20 | 14269 |
| 21 | 49021 |
| 22 | 28605 |
| 23 | 5853 |
| 24 | 5869 |
| 25 | 30685 |
| 26 | 61373 |
| 27 | 23517 |
| 28 | 12013 |
| 29 | 24029 |
| 30 | 7021 |
| 31 | 1365 |
| 32 | 2733 |
| 33 | 28125 |
| 34 | 192445 |
| 35 | 97245 |
| 36 | 384957 |
| 37 | 2031485 |
| 38 | 1032125 |
| 39 | 113629 |
| 40 | 227261 |
| 41 | 4128637 |
| 42 | 16252669 |
| 43 | 3112829 |
| 44 | 1564605 |
| 45 | 6225789 |
| 46 | 913341 |
| 47 | 46813 |
| 48 | 46829 |
| 49 | 915421 |