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 | 3 |
| 2 | 8 |
| 3 | 21 |
| 4 | 40 |
| 5 | 55 |
| 6 | 84 |
| 7 | 105 |
| 8 | 144 |
| 9 | 189 |
| 10 | 220 |
| 11 | 275 |
| 12 | 336 |
| 13 | 377 |
| 14 | 448 |
| 15 | 495 |
| 16 | 576 |
| 17 | 663 |
| 18 | 720 |
| 19 | 817 |
| 20 | 880 |
| 21 | 987 |
| 22 | 1100 |
| 23 | 1173 |
| 24 | 1296 |
| 25 | 1425 |
| 26 | 1508 |
| 27 | 1647 |
| 28 | 1736 |
| 29 | 1885 |
| 30 | 2040 |
| 31 | 2139 |
| 32 | 2304 |
| 33 | 2475 |
| 34 | 2584 |
| 35 | 2765 |
| 36 | 2880 |
| 37 | 3071 |
| 38 | 3268 |
| 39 | 3393 |
| 40 | 3600 |
| 41 | 3731 |
| 42 | 3948 |
| 43 | 4171 |
| 44 | 4312 |
| 45 | 4545 |
| 46 | 4784 |
| 47 | 4935 |