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) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 4 |
| 3 | 8 |
| 4 | 17 |
| 5 | 26 |
| 6 | 49 |
| 7 | 69 |
| 8 | 115 |
| 9 | 164 |
| 10 | 249 |
| 11 | 343 |
| 12 | 513 |
| 13 | 686 |
| 14 | 974 |
| 15 | 1314 |
| 16 | 1806 |
| 17 | 2382 |
| 18 | 3232 |
| 19 | 4208 |
| 20 | 5597 |
| 21 | 7244 |
| 22 | 9456 |
| 23 | 12118 |
| 24 | 15687 |
| 25 | 19899 |
| 26 | 25422 |
| 27 | 32079 |
| 28 | 40589 |
| 29 | 50796 |
| 30 | 63805 |
| 31 | 79303 |
| 32 | 98817 |
| 33 | 122179 |
| 34 | 151145 |
| 35 | 185820 |
| 36 | 228598 |
| 37 | 279476 |
| 38 | 341807 |
| 39 | 416051 |
| 40 | 506205 |
| 41 | 613244 |
| 42 | 742720 |