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 | 82 |
| 2 | 131 |
| 3 | 288 |
| 4 | 496 |
| 5 | 796 |
| 6 | 1645 |
| 7 | 2976 |
| 8 | 4890 |
| 9 | 9332 |
| 10 | 17659 |
| 11 | 30090 |
| 12 | 54846 |
| 13 | 104380 |
| 14 | 184549 |
| 15 | 329454 |
| 16 | 618800 |
| 17 | 1121728 |
| 18 | 1998197 |
| 19 | 3692344 |
| 20 | 6772932 |
| 21 | 12142202 |
| 22 | 22172787 |
| 23 | 40769872 |
| 24 | 73664484 |
| 25 | 133728146 |
| 26 | 245325455 |
| 27 | 445857864 |
| 28 | 808254626 |
| 29 | 1477620470 |