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 | -2 |
| 2 | 2 |
| 3 | 42 |
| 4 | 172 |
| 5 | 470 |
| 6 | 1038 |
| 7 | 2002 |
| 8 | 3512 |
| 9 | 5742 |
| 10 | 8890 |
| 11 | 13178 |
| 12 | 18852 |
| 13 | 26182 |
| 14 | 35462 |
| 15 | 47010 |
| 16 | 61168 |
| 17 | 78302 |
| 18 | 98802 |
| 19 | 123082 |
| 20 | 151580 |
| 21 | 184758 |
| 22 | 223102 |
| 23 | 267122 |
| 24 | 317352 |
| 25 | 374350 |
| 26 | 438698 |
| 27 | 511002 |
| 28 | 591892 |
| 29 | 682022 |
| 30 | 782070 |
| 31 | 892738 |
| 32 | 1014752 |
| 33 | 1148862 |