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 | 45 |
| 2 | 47 |
| 3 | 50 |
| 4 | 56 |
| 5 | 66 |
| 6 | 86 |
| 7 | 122 |
| 8 | 194 |
| 9 | 330 |
| 10 | 602 |
| 11 | 1130 |
| 12 | 2186 |
| 13 | 4266 |
| 14 | 8426 |
| 15 | 16682 |
| 16 | 33194 |
| 17 | 66090 |
| 18 | 131882 |
| 19 | 263210 |
| 20 | 525866 |
| 21 | 1050666 |
| 22 | 2100266 |
| 23 | 4198442 |
| 24 | 8394794 |
| 25 | 16785450 |
| 26 | 33566762 |
| 27 | 67125290 |
| 28 | 134242346 |
| 29 | 268468266 |
| 30 | 536920106 |
| 31 | 1073807402 |
| 32 | 2147581994 |
| 33 | 4295098410 |