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 | 341 |
| 2 | 1105 |
| 3 | 1387 |
| 4 | 2047 |
| 5 | 4369 |
| 6 | 4681 |
| 7 | 5461 |
| 8 | 13981 |
| 9 | 15709 |
| 10 | 35333 |
| 11 | 42799 |
| 12 | 60787 |
| 13 | 126217 |
| 14 | 158369 |
| 15 | 215265 |
| 16 | 256999 |
| 17 | 266305 |
| 18 | 486737 |
| 19 | 617093 |
| 20 | 1082401 |
| 21 | 1398101 |
| 22 | 2113665 |
| 23 | 2304167 |
| 24 | 4025905 |
| 25 | 4188889 |
| 26 | 4670029 |
| 27 | 6236473 |
| 28 | 6242685 |
| 29 | 8388607 |
| 30 | 13757653 |
| 31 | 16843009 |
| 32 | 17895697 |
| 33 | 22369621 |