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 | 0 |
| 2 | 31 |
| 3 | 120 |
| 4 | 283 |
| 5 | 293 |
| 6 | 712 |
| 7 | 2872 |
| 8 | 3287 |
| 9 | 5028 |
| 10 | 5129 |
| 11 | 7088 |
| 12 | 9553 |
| 13 | 13229 |
| 14 | 14232 |
| 15 | 14799 |
| 16 | 15113 |
| 17 | 20153 |
| 18 | 20830 |
| 19 | 23239 |
| 20 | 30233 |
| 21 | 31430 |
| 22 | 31667 |
| 23 | 34443 |
| 24 | 40654 |
| 25 | 44298 |
| 26 | 50184 |
| 27 | 78877 |
| 28 | 105834 |
| 29 | 115281 |
| 30 | 125120 |
| 31 | 164253 |
| 32 | 192103 |
| 33 | 201590 |
| 34 | 227747 |
| 35 | 239910 |
| 36 | 241910 |
| 37 | 282230 |
| 38 | 322550 |
| 39 | 374370 |