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 | 1 |
| 2 | 21 |
| 3 | 105 |
| 4 | 1050 |
| 5 | 1155 |
| 6 | 24921 |
| 7 | 26565 |
| 8 | 45150 |
| 9 | 49842 |
| 10 | 59455 |
| 11 | 249210 |
| 12 | 274131 |
| 13 | 548262 |
| 14 | 1129645 |
| 15 | 1151325 |
| 16 | 1248555 |
| 17 | 1309350 |
| 18 | 2302650 |
| 19 | 2741310 |
| 20 | 3388935 |
| 21 | 4605300 |
| 22 | 6305013 |
| 23 | 12610026 |
| 24 | 13417131 |
| 25 | 14685385 |
| 26 | 23722545 |
| 27 | 25750550 |
| 28 | 26834262 |
| 29 | 30154410 |
| 30 | 33388425 |
| 31 | 42997750 |
| 32 | 44056155 |