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 | 6 |
| 3 | 15 |
| 4 | 26 |
| 5 | 41 |
| 6 | 60 |
| 7 | 81 |
| 8 | 106 |
| 9 | 135 |
| 10 | 166 |
| 11 | 201 |
| 12 | 240 |
| 13 | 281 |
| 14 | 326 |
| 15 | 375 |
| 16 | 426 |
| 17 | 481 |
| 18 | 540 |
| 19 | 601 |
| 20 | 666 |
| 21 | 735 |
| 22 | 806 |
| 23 | 881 |
| 24 | 960 |
| 25 | 1041 |
| 26 | 1126 |
| 27 | 1215 |
| 28 | 1306 |
| 29 | 1401 |
| 30 | 1500 |
| 31 | 1601 |
| 32 | 1706 |
| 33 | 1815 |
| 34 | 1926 |
| 35 | 2041 |
| 36 | 2160 |
| 37 | 2281 |
| 38 | 2406 |
| 39 | 2535 |
| 40 | 2666 |
| 41 | 2801 |
| 42 | 2940 |
| 43 | 3081 |
| 44 | 3226 |
| 45 | 3375 |
| 46 | 3526 |
| 47 | 3681 |
| 48 | 3840 |