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 | 1 |
| 1 | 15 |
| 2 | 92 |
| 3 | 372 |
| 4 | 1170 |
| 5 | 3102 |
| 6 | 7260 |
| 7 | 15444 |
| 8 | 30459 |
| 9 | 56485 |
| 10 | 99528 |
| 11 | 167960 |
| 12 | 273156 |
| 13 | 430236 |
| 14 | 658920 |
| 15 | 984504 |
| 16 | 1438965 |
| 17 | 2062203 |
| 18 | 2903428 |
| 19 | 4022700 |
| 20 | 5492630 |
| 21 | 7400250 |
| 22 | 9849060 |
| 23 | 12961260 |
| 24 | 16880175 |
| 25 | 21772881 |
| 26 | 27833040 |
| 27 | 35283952 |
| 28 | 44381832 |
| 29 | 55419320 |
| 30 | 68729232 |
| 31 | 84688560 |
| 32 | 103722729 |
| 33 | 126310119 |