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 | 3 |
| 2 | 6 |
| 3 | 16 |
| 4 | 26 |
| 5 | 84 |
| 6 | 126 |
| 7 | 424 |
| 8 | 610 |
| 9 | 2068 |
| 10 | 2936 |
| 11 | 9816 |
| 12 | 13884 |
| 13 | 45608 |
| 14 | 64750 |
| 15 | 208336 |
| 16 | 297570 |
| 17 | 938676 |
| 18 | 1351492 |
| 19 | 4181752 |
| 20 | 6071028 |
| 21 | 18454648 |
| 22 | 27023598 |
| 23 | 80796336 |
| 24 | 119300636 |
| 25 | 351331464 |
| 26 | 522981328 |
| 27 | 1518742384 |
| 28 | 2278188504 |
| 29 | 6531607248 |
| 30 | 9869753934 |
| 31 | 27963677600 |
| 32 | 42547990626 |