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 | 4 |
| 3 | 13 |
| 4 | 45 |
| 5 | 95 |
| 6 | 203 |
| 7 | 350 |
| 8 | 606 |
| 9 | 930 |
| 10 | 1430 |
| 11 | 2035 |
| 12 | 2899 |
| 13 | 3913 |
| 14 | 5285 |
| 15 | 6860 |
| 16 | 8908 |
| 17 | 11220 |
| 18 | 14136 |
| 19 | 17385 |
| 20 | 21385 |
| 21 | 25795 |
| 22 | 31119 |
| 23 | 36938 |
| 24 | 43850 |
| 25 | 51350 |
| 26 | 60138 |
| 27 | 69615 |
| 28 | 80591 |
| 29 | 92365 |
| 30 | 105865 |
| 31 | 120280 |
| 32 | 136664 |
| 33 | 154088 |
| 34 | 173740 |
| 35 | 194565 |
| 36 | 217893 |
| 37 | 242535 |
| 38 | 269971 |