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) |
|---|---|
| 0 | 1 |
| 1 | 6 |
| 2 | 14 |
| 3 | 26 |
| 4 | 44 |
| 5 | 72 |
| 6 | 118 |
| 7 | 198 |
| 8 | 344 |
| 9 | 620 |
| 10 | 1154 |
| 11 | 2202 |
| 12 | 4276 |
| 13 | 8400 |
| 14 | 16622 |
| 15 | 33038 |
| 16 | 65840 |
| 17 | 131412 |
| 18 | 262522 |
| 19 | 524706 |
| 20 | 1049036 |
| 21 | 2097656 |
| 22 | 4194854 |
| 23 | 8389206 |
| 24 | 16777864 |
| 25 | 33555132 |
| 26 | 67109618 |
| 27 | 134218538 |
| 28 | 268436324 |
| 29 | 536871840 |
| 30 | 1073742814 |
| 31 | 2147484702 |
| 32 | 4294968416 |
| 33 | 8589935780 |