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 | 0 |
| 1 | 5 |
| 2 | 39 |
| 3 | 150 |
| 4 | 410 |
| 5 | 915 |
| 6 | 1785 |
| 7 | 3164 |
| 8 | 5220 |
| 9 | 8145 |
| 10 | 12155 |
| 11 | 17490 |
| 12 | 24414 |
| 13 | 33215 |
| 14 | 44205 |
| 15 | 57720 |
| 16 | 74120 |
| 17 | 93789 |
| 18 | 117135 |
| 19 | 144590 |
| 20 | 176610 |
| 21 | 213675 |
| 22 | 256289 |
| 23 | 304980 |
| 24 | 360300 |
| 25 | 422825 |
| 26 | 493155 |
| 27 | 571914 |
| 28 | 659750 |
| 29 | 757335 |
| 30 | 865365 |
| 31 | 984560 |
| 32 | 1115664 |