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) |
|---|---|
| 2 | 2 |
| 3 | 5 |
| 4 | 11 |
| 5 | 21 |
| 6 | 38 |
| 7 | 64 |
| 8 | 105 |
| 9 | 165 |
| 10 | 254 |
| 11 | 381 |
| 12 | 562 |
| 13 | 813 |
| 14 | 1162 |
| 15 | 1636 |
| 16 | 2279 |
| 17 | 3139 |
| 18 | 4285 |
| 19 | 5794 |
| 20 | 7776 |
| 21 | 10353 |
| 22 | 13694 |
| 23 | 17992 |
| 24 | 23502 |
| 25 | 30520 |
| 26 | 39433 |
| 27 | 50687 |
| 28 | 64855 |
| 29 | 82607 |
| 30 | 104785 |
| 31 | 132375 |
| 32 | 166608 |
| 33 | 208921 |
| 34 | 261090 |
| 35 | 325196 |
| 36 | 403779 |
| 37 | 499818 |
| 38 | 616928 |
| 39 | 759335 |
| 40 | 932135 |