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 | 9 |
| 2 | 35 |
| 3 | 77 |
| 4 | 209 |
| 5 | 299 |
| 6 | 527 |
| 7 | 989 |
| 8 | 1829 |
| 9 | 2627 |
| 10 | 3239 |
| 11 | 3569 |
| 12 | 5459 |
| 13 | 8777 |
| 14 | 9869 |
| 15 | 13529 |
| 16 | 18527 |
| 17 | 20099 |
| 18 | 22577 |
| 19 | 25199 |
| 20 | 31877 |
| 21 | 37127 |
| 22 | 48827 |
| 23 | 55277 |
| 24 | 64979 |
| 25 | 72389 |
| 26 | 73919 |
| 27 | 88409 |
| 28 | 98789 |
| 29 | 107879 |
| 30 | 115439 |
| 31 | 125249 |
| 32 | 137549 |
| 33 | 159329 |
| 34 | 192509 |
| 35 | 200027 |
| 36 | 218129 |
| 37 | 239777 |
| 38 | 277139 |
| 39 | 353219 |