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 | 3 |
| 2 | 11 |
| 3 | 31 |
| 4 | 83 |
| 5 | 283 |
| 6 | 383 |
| 7 | 1327 |
| 8 | 2591 |
| 9 | 7351 |
| 10 | 7759 |
| 11 | 11171 |
| 12 | 11587 |
| 13 | 31391 |
| 14 | 46919 |
| 15 | 147919 |
| 16 | 288023 |
| 17 | 360611 |
| 18 | 425603 |
| 19 | 507163 |
| 20 | 666203 |
| 21 | 1414703 |
| 22 | 2198887 |
| 23 | 3358151 |
| 24 | 9287659 |
| 25 | 11512547 |
| 26 | 11648531 |
| 27 | 24315047 |
| 28 | 42453823 |
| 29 | 145554779 |
| 30 | 161720147 |
| 31 | 184007671 |
| 32 | 766668811 |