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 | 4 |
| 4 | 8 |
| 5 | 16 |
| 6 | 33 |
| 7 | 71 |
| 8 | 160 |
| 9 | 376 |
| 10 | 912 |
| 11 | 2256 |
| 12 | 5633 |
| 13 | 14093 |
| 14 | 35170 |
| 15 | 87344 |
| 16 | 215680 |
| 17 | 529568 |
| 18 | 1293633 |
| 19 | 3146515 |
| 20 | 7627208 |
| 21 | 18441476 |
| 22 | 44510160 |
| 23 | 107310480 |
| 24 | 258566402 |
| 25 | 622900466 |
| 26 | 1500717220 |
| 27 | 3616471960 |
| 28 | 8717948688 |
| 29 | 21023129472 |
| 30 | 50713990918 |
| 31 | 122374025914 |
| 32 | 295366777856 |