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 | 4 |
| 2 | 22 |
| 3 | 49 |
| 4 | 94 |
| 5 | 169 |
| 6 | 298 |
| 7 | 529 |
| 8 | 958 |
| 9 | 1777 |
| 10 | 3370 |
| 11 | 6505 |
| 12 | 12718 |
| 13 | 25081 |
| 14 | 49738 |
| 15 | 98977 |
| 16 | 197374 |
| 17 | 394081 |
| 18 | 787402 |
| 19 | 1573945 |
| 20 | 3146926 |
| 21 | 6292777 |
| 22 | 12584362 |
| 23 | 25167409 |
| 24 | 50333374 |
| 25 | 100665169 |
| 26 | 201328618 |
| 27 | 402655369 |
| 28 | 805308718 |
| 29 | 1610615257 |
| 30 | 3221228170 |
| 31 | 6442453825 |
| 32 | 12884904958 |