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 | 4 |
| 2 | 10 |
| 3 | 22 |
| 4 | 32 |
| 5 | 64 |
| 6 | 84 |
| 7 | 108 |
| 8 | 132 |
| 9 | 186 |
| 10 | 214 |
| 11 | 284 |
| 12 | 360 |
| 13 | 446 |
| 14 | 490 |
| 15 | 590 |
| 16 | 642 |
| 17 | 694 |
| 18 | 746 |
| 19 | 930 |
| 20 | 990 |
| 21 | 1192 |
| 22 | 1266 |
| 23 | 1342 |
| 24 | 1568 |
| 25 | 1738 |
| 26 | 2086 |
| 27 | 2180 |
| 28 | 2276 |
| 29 | 2470 |
| 30 | 2572 |
| 31 | 2668 |
| 32 | 2780 |
| 33 | 3326 |
| 34 | 3556 |
| 35 | 3680 |
| 36 | 3922 |
| 37 | 4298 |
| 38 | 4430 |
| 39 | 4560 |
| 40 | 4832 |
| 41 | 4968 |