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) |
|---|---|
| 2 | 3 |
| 3 | 47 |
| 4 | 306 |
| 5 | 1270 |
| 6 | 4005 |
| 7 | 10493 |
| 8 | 24052 |
| 9 | 49836 |
| 10 | 95415 |
| 11 | 171435 |
| 12 | 292358 |
| 13 | 477282 |
| 14 | 750841 |
| 15 | 1144185 |
| 16 | 1696040 |
| 17 | 2453848 |
| 18 | 3474987 |
| 19 | 4828071 |
| 20 | 6594330 |
| 21 | 8869070 |
| 22 | 11763213 |
| 23 | 15404917 |
| 24 | 19941276 |
| 25 | 25540100 |
| 26 | 32391775 |
| 27 | 40711203 |
| 28 | 50739822 |
| 29 | 62747706 |
| 30 | 77035745 |
| 31 | 93937905 |
| 32 | 113823568 |
| 33 | 137099952 |
| 34 | 164214611 |
| 35 | 195658015 |