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 | 5 |
| 2 | 11 |
| 3 | 17 |
| 4 | 41 |
| 5 | 85 |
| 6 | 137 |
| 7 | 257 |
| 8 | 641 |
| 9 | 1285 |
| 10 | 2329 |
| 11 | 4369 |
| 12 | 10537 |
| 13 | 17477 |
| 14 | 35209 |
| 15 | 65537 |
| 16 | 163841 |
| 17 | 297109 |
| 18 | 557057 |
| 19 | 1114129 |
| 20 | 2687017 |
| 21 | 4491589 |
| 22 | 8978569 |
| 23 | 16843009 |
| 24 | 42009217 |
| 25 | 71304257 |
| 26 | 143163649 |
| 27 | 286331153 |
| 28 | 690563369 |
| 29 | 1145390149 |
| 30 | 2281701377 |
| 31 | 4295098369 |
| 32 | 10737647617 |