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 | 4 |
| 1 | 25 |
| 2 | 91 |
| 3 | 252 |
| 4 | 588 |
| 5 | 1218 |
| 6 | 2310 |
| 7 | 4092 |
| 8 | 6864 |
| 9 | 11011 |
| 10 | 17017 |
| 11 | 25480 |
| 12 | 37128 |
| 13 | 52836 |
| 14 | 73644 |
| 15 | 100776 |
| 16 | 135660 |
| 17 | 179949 |
| 18 | 235543 |
| 19 | 304612 |
| 20 | 389620 |
| 21 | 493350 |
| 22 | 618930 |
| 23 | 769860 |
| 24 | 950040 |
| 25 | 1163799 |
| 26 | 1415925 |
| 27 | 1711696 |
| 28 | 2056912 |
| 29 | 2457928 |
| 30 | 2921688 |
| 31 | 3455760 |
| 32 | 4068372 |