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 | 13 |
| 3 | 24 |
| 4 | 45 |
| 5 | 84 |
| 6 | 158 |
| 7 | 296 |
| 8 | 557 |
| 9 | 1045 |
| 10 | 1966 |
| 11 | 3691 |
| 12 | 6942 |
| 13 | 13038 |
| 14 | 24516 |
| 15 | 46055 |
| 16 | 86585 |
| 17 | 162680 |
| 18 | 305809 |
| 19 | 574624 |
| 20 | 1080106 |
| 21 | 2029680 |
| 22 | 3814941 |
| 23 | 7169145 |
| 24 | 13474502 |
| 25 | 25322375 |
| 26 | 47592650 |
| 27 | 89441626 |
| 28 | 168100324 |
| 29 | 315917527 |
| 30 | 593742597 |
| 31 | 1115852904 |
| 32 | 2097145317 |