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 | 21 |
| 3 | 31 |
| 4 | 651 |
| 5 | 889 |
| 6 | 3210 |
| 7 | 3498 |
| 8 | 3710 |
| 9 | 3882 |
| 10 | 3910 |
| 11 | 4310 |
| 12 | 4922 |
| 13 | 4982 |
| 14 | 5182 |
| 15 | 5457 |
| 16 | 5885 |
| 17 | 6035 |
| 18 | 6095 |
| 19 | 6307 |
| 20 | 6797 |
| 21 | 7117 |
| 22 | 7327 |
| 23 | 7597 |
| 24 | 24573 |
| 25 | 27559 |
| 26 | 71193 |
| 27 | 82110 |
| 28 | 90510 |
| 29 | 94981 |
| 30 | 97410 |
| 31 | 98671 |
| 32 | 99301 |
| 33 | 99510 |
| 34 | 100110 |
| 35 | 103362 |
| 36 | 104622 |
| 37 | 107778 |
| 38 | 108438 |
| 39 | 108822 |