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 | 1 |
| 2 | 6 |
| 3 | 50 |
| 4 | 196 |
| 5 | 1210 |
| 6 | 2366 |
| 7 | 6936 |
| 8 | 10830 |
| 9 | 23276 |
| 10 | 58870 |
| 11 | 76880 |
| 12 | 156066 |
| 13 | 235340 |
| 14 | 284746 |
| 15 | 406456 |
| 16 | 657306 |
| 17 | 1009490 |
| 18 | 1153510 |
| 19 | 1678886 |
| 20 | 2117220 |
| 21 | 2366076 |
| 22 | 3245320 |
| 23 | 3954286 |
| 24 | 5227860 |
| 25 | 7376656 |
| 26 | 8670850 |
| 27 | 9378356 |
| 28 | 10922346 |
| 29 | 11762190 |
| 30 | 13586216 |
| 31 | 21677376 |