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 | 4 |
| 2 | 41 |
| 3 | 147 |
| 4 | 358 |
| 5 | 710 |
| 6 | 1239 |
| 7 | 1981 |
| 8 | 2972 |
| 9 | 4248 |
| 10 | 5845 |
| 11 | 7799 |
| 12 | 10146 |
| 13 | 12922 |
| 14 | 16163 |
| 15 | 19905 |
| 16 | 24184 |
| 17 | 29036 |
| 18 | 34497 |
| 19 | 40603 |
| 20 | 47390 |
| 21 | 54894 |
| 22 | 63151 |
| 23 | 72197 |
| 24 | 82068 |
| 25 | 92800 |
| 26 | 104429 |
| 27 | 116991 |
| 28 | 130522 |
| 29 | 145058 |
| 30 | 160635 |
| 31 | 177289 |