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 | 7 |
| 2 | 28 |
| 3 | 91 |
| 4 | 259 |
| 5 | 665 |
| 6 | 1589 |
| 7 | 3585 |
| 8 | 7707 |
| 9 | 15925 |
| 10 | 31808 |
| 11 | 61677 |
| 12 | 116536 |
| 13 | 215180 |
| 14 | 389194 |
| 15 | 690935 |
| 16 | 1206016 |
| 17 | 2072700 |
| 18 | 3511851 |
| 19 | 5872545 |
| 20 | 9701097 |
| 21 | 15844866 |
| 22 | 25606840 |
| 23 | 40974528 |
| 24 | 64956836 |
| 25 | 102076289 |
| 26 | 159084401 |
| 27 | 245995792 |
| 28 | 377574402 |
| 29 | 575459136 |
| 30 | 871189669 |
| 31 | 1310492547 |
| 32 | 1959326215 |
| 33 | 2912370944 |