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 | 1 |
| 2 | 2 |
| 3 | 12 |
| 4 | 152 |
| 5 | 222 |
| 6 | 268 |
| 7 | 362 |
| 8 | 432 |
| 9 | 723 |
| 10 | 992 |
| 11 | 1517 |
| 12 | 2532 |
| 13 | 2567 |
| 14 | 8472 |
| 15 | 9718 |
| 16 | 9858 |
| 17 | 13498 |
| 18 | 15738 |
| 19 | 34732 |
| 20 | 35898 |
| 21 | 44092 |
| 22 | 60363 |
| 23 | 69312 |
| 24 | 75168 |
| 25 | 75973 |
| 26 | 82752 |
| 27 | 87208 |
| 28 | 88888 |
| 29 | 98198 |
| 30 | 105852 |
| 31 | 114392 |
| 32 | 126848 |
| 33 | 128672 |
| 34 | 135368 |
| 35 | 141093 |
| 36 | 161268 |
| 37 | 221223 |
| 38 | 233788 |
| 39 | 301513 |
| 40 | 328358 |