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 | 2 |
| 3 | 13 |
| 4 | 45 |
| 5 | 116 |
| 6 | 250 |
| 7 | 477 |
| 8 | 833 |
| 9 | 1360 |
| 10 | 2106 |
| 11 | 3125 |
| 12 | 4477 |
| 13 | 6228 |
| 14 | 8450 |
| 15 | 11221 |
| 16 | 14625 |
| 17 | 18752 |
| 18 | 23698 |
| 19 | 29565 |
| 20 | 36461 |
| 21 | 44500 |
| 22 | 53802 |
| 23 | 64493 |
| 24 | 76705 |
| 25 | 90576 |
| 26 | 106250 |
| 27 | 123877 |
| 28 | 143613 |
| 29 | 165620 |
| 30 | 190066 |
| 31 | 217125 |
| 32 | 246977 |
| 33 | 279808 |
| 34 | 315810 |
| 35 | 355181 |
| 36 | 398125 |
| 37 | 444852 |
| 38 | 495578 |
| 39 | 550525 |