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 | 1 |
| 2 | 5 |
| 3 | 10 |
| 4 | 24 |
| 5 | 42 |
| 6 | 83 |
| 7 | 132 |
| 8 | 222 |
| 9 | 335 |
| 10 | 511 |
| 11 | 728 |
| 12 | 1047 |
| 13 | 1428 |
| 14 | 1956 |
| 15 | 2586 |
| 16 | 3414 |
| 17 | 4389 |
| 18 | 5638 |
| 19 | 7084 |
| 20 | 8888 |
| 21 | 10966 |
| 22 | 13494 |
| 23 | 16380 |
| 24 | 19841 |
| 25 | 23751 |
| 26 | 28371 |
| 27 | 33566 |
| 28 | 39616 |
| 29 | 46376 |
| 30 | 54177 |
| 31 | 62832 |
| 32 | 72726 |
| 33 | 83661 |
| 34 | 96045 |
| 35 | 109668 |
| 36 | 124999 |
| 37 | 141778 |
| 38 | 160538 |
| 39 | 181006 |
| 40 | 203742 |
| 41 | 228459 |
| 42 | 255788 |
| 43 | 285384 |