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 | 41 |
| 3 | 197 |
| 4 | 639 |
| 5 | 1593 |
| 6 | 3447 |
| 7 | 6601 |
| 8 | 11599 |
| 9 | 19113 |
| 10 | 29897 |
| 11 | 44683 |
| 12 | 64615 |
| 13 | 90763 |
| 14 | 124211 |
| 15 | 166551 |
| 16 | 218759 |
| 17 | 283081 |
| 18 | 360979 |
| 19 | 454095 |
| 20 | 564319 |
| 21 | 694297 |
| 22 | 846287 |
| 23 | 1021511 |
| 24 | 1223095 |
| 25 | 1454367 |
| 26 | 1717867 |
| 27 | 2016457 |
| 28 | 2352313 |
| 29 | 2728929 |
| 30 | 3149913 |
| 31 | 3619807 |
| 32 | 4141547 |