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 | 6 |
| 2 | 35 |
| 3 | 105 |
| 4 | 234 |
| 5 | 440 |
| 6 | 741 |
| 7 | 1155 |
| 8 | 1700 |
| 9 | 2394 |
| 10 | 3255 |
| 11 | 4301 |
| 12 | 5550 |
| 13 | 7020 |
| 14 | 8729 |
| 15 | 10695 |
| 16 | 12936 |
| 17 | 15470 |
| 18 | 18315 |
| 19 | 21489 |
| 20 | 25010 |
| 21 | 28896 |
| 22 | 33165 |
| 23 | 37835 |
| 24 | 42924 |
| 25 | 48450 |
| 26 | 54431 |
| 27 | 60885 |
| 28 | 67830 |
| 29 | 75284 |
| 30 | 83265 |
| 31 | 91791 |
| 32 | 100880 |
| 33 | 110550 |
| 34 | 120819 |
| 35 | 131705 |
| 36 | 143226 |
| 37 | 155400 |
| 38 | 168245 |
| 39 | 181779 |
| 40 | 196020 |