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 | 14 |
| 2 | 95 |
| 3 | 440 |
| 4 | 1595 |
| 5 | 4862 |
| 6 | 13013 |
| 7 | 31460 |
| 8 | 70070 |
| 9 | 145860 |
| 10 | 286858 |
| 11 | 537472 |
| 12 | 965770 |
| 13 | 1673140 |
| 14 | 2806870 |
| 15 | 4576264 |
| 16 | 7272991 |
| 17 | 11296450 |
| 18 | 17185025 |
| 19 | 25654200 |
| 20 | 37642605 |
| 21 | 54367170 |
| 22 | 77388675 |
| 23 | 108689100 |
| 24 | 150762300 |
| 25 | 206719656 |
| 26 | 280412484 |
| 27 | 376573120 |