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 | 0 |
| 2 | 264 |
| 3 | 1491 |
| 4 | 2427 |
| 5 | 3811 |
| 6 | 10764 |
| 7 | 16180 |
| 8 | 24220 |
| 9 | 64711 |
| 10 | 96271 |
| 11 | 143127 |
| 12 | 379120 |
| 13 | 563064 |
| 14 | 836160 |
| 15 | 2211627 |
| 16 | 3283731 |
| 17 | 4875451 |
| 18 | 12892260 |
| 19 | 19140940 |
| 20 | 28418164 |
| 21 | 75143551 |
| 22 | 111563527 |
| 23 | 165635151 |
| 24 | 437970664 |
| 25 | 650241840 |
| 26 | 965394360 |
| 27 | 2552682051 |