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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 8 |
| 6 | 14 |
| 7 | 24 |
| 8 | 45 |
| 9 | 85 |
| 10 | 170 |
| 11 | 351 |
| 12 | 749 |
| 13 | 1656 |
| 14 | 3758 |
| 15 | 8776 |
| 16 | 21013 |
| 17 | 51473 |
| 18 | 129018 |
| 19 | 329939 |
| 20 | 860901 |
| 21 | 2288528 |
| 22 | 6192526 |
| 23 | 17047248 |
| 24 | 47693661 |
| 25 | 135554549 |
| 26 | 391099370 |
| 27 | 1144867871 |
| 28 | 3398656893 |
| 29 | 10226072720 |
| 30 | 31173964942 |
| 31 | 96240485104 |
| 32 | 300777706053 |