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 | 5 |
| 1 | 8 |
| 2 | 17 |
| 3 | 41 |
| 4 | 104 |
| 5 | 269 |
| 6 | 701 |
| 7 | 1832 |
| 8 | 4793 |
| 9 | 12545 |
| 10 | 32840 |
| 11 | 85973 |
| 12 | 225077 |
| 13 | 589256 |
| 14 | 1542689 |
| 15 | 4038809 |
| 16 | 10573736 |
| 17 | 27682397 |
| 18 | 72473453 |
| 19 | 189737960 |
| 20 | 496740425 |
| 21 | 1300483313 |
| 22 | 3404709512 |
| 23 | 8913645221 |
| 24 | 23336226149 |
| 25 | 61095033224 |
| 26 | 159948873521 |
| 27 | 418751587337 |
| 28 | 1096305888488 |
| 29 | 2870166078125 |
| 30 | 7514192345885 |