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 | 7 |
| 2 | 14 |
| 3 | 28 |
| 4 | 56 |
| 5 | 112 |
| 6 | 224 |
| 7 | 448 |
| 8 | 896 |
| 9 | 1585 |
| 10 | 3143 |
| 11 | 4477 |
| 12 | 8954 |
| 13 | 13543 |
| 14 | 26888 |
| 15 | 53776 |
| 16 | 89453 |
| 17 | 124042 |
| 18 | 136286 |
| 19 | 259954 |
| 20 | 505553 |
| 21 | 541108 |
| 22 | 552566 |
| 23 | 808132 |
| 24 | 820520 |
| 25 | 822778 |
| 26 | 1050566 |
| 27 | 1066132 |
| 28 | 1178498 |
| 29 | 2326387 |
| 30 | 4560065 |
| 31 | 4605631 |
| 32 | 4740197 |
| 33 | 4884976 |
| 34 | 9352865 |