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 | 32 |
| 1 | 68 |
| 2 | 176 |
| 3 | 464 |
| 4 | 1220 |
| 5 | 3200 |
| 6 | 8384 |
| 7 | 21956 |
| 8 | 57488 |
| 9 | 150512 |
| 10 | 394052 |
| 11 | 1031648 |
| 12 | 2700896 |
| 13 | 7071044 |
| 14 | 18512240 |
| 15 | 48465680 |
| 16 | 126884804 |
| 17 | 332188736 |
| 18 | 869681408 |
| 19 | 2276855492 |
| 20 | 5960885072 |
| 21 | 15605799728 |
| 22 | 40856514116 |
| 23 | 106963742624 |
| 24 | 280034713760 |
| 25 | 733140398660 |