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) |
|---|---|
| 2 | 1 |
| 3 | 2 |
| 4 | 17 |
| 5 | 22 |
| 6 | 27 |
| 7 | 142 |
| 8 | 31 |
| 9 | 9 |
| 10 | 97 |
| 11 | 666 |
| 12 | 83 |
| 13 | 604 |
| 14 | 1529 |
| 15 | 1906 |
| 16 | 791 |
| 17 | 367 |
| 18 | 3533 |
| 19 | 4238 |
| 20 | 5019 |
| 21 | 584 |
| 22 | 617 |
| 23 | 7822 |
| 24 | 8995 |
| 25 | 518 |
| 26 | 473 |
| 27 | 13342 |
| 28 | 1663 |
| 29 | 8324 |
| 30 | 3689 |
| 31 | 20662 |
| 32 | 23003 |
| 33 | 532 |
| 34 | 1655 |
| 35 | 31074 |
| 36 | 541 |
| 37 | 6218 |
| 38 | 2145 |
| 39 | 44354 |
| 40 | 48187 |
| 41 | 2613 |
| 42 | 18805 |
| 43 | 20330 |
| 44 | 65651 |
| 45 | 356 |
| 46 | 15083 |
| 47 | 80894 |
| 48 | 28979 |
| 49 | 23293 |