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 | 7 |
| 2 | 42 |
| 3 | 196 |
| 4 | 147 |
| 5 | 1911 |
| 6 | 6860 |
| 7 | 2744 |
| 8 | 4459 |
| 9 | 89180 |
| 10 | 264110 |
| 11 | 72030 |
| 12 | 62426 |
| 13 | 156065 |
| 14 | 4213755 |
| 15 | 10722866 |
| 16 | 2218524 |
| 17 | 1310946 |
| 18 | 1747928 |
| 19 | 5899257 |
| 20 | 200574738 |
| 21 | 450360372 |
| 22 | 75060062 |
| 23 | 33647614 |
| 24 | 30588740 |
| 25 | 55059732 |
| 26 | 234003861 |
| 27 | 9594158301 |
| 28 | 19365495996 |
| 29 | 2702162232 |
| 30 | 975780806 |
| 31 | 672952280 |
| 32 | 825895980 |
| 33 | 1872030888 |