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 | 0 |
| 1 | 1 |
| 2 | 46 |
| 3 | 927 |
| 4 | 6904 |
| 5 | 52651 |
| 6 | 65664 |
| 7 | 946711 |
| 8 | 441262 |
| 9 | 144135 |
| 10 | 1 |
| 11 | 1651771 |
| 12 | 4895892 |
| 13 | 9086284 |
| 14 | 6359257 |
| 15 | 52609311 |
| 16 | 61277761 |
| 17 | 96573142 |
| 18 | 42221043 |
| 19 | 18854074 |
| 20 | 46 |
| 21 | 12166758 |
| 22 | 409973311 |
| 23 | 988530841 |
| 24 | 679201191 |
| 25 | 526041442 |
| 26 | 677519803 |
| 27 | 984024783 |
| 28 | 403098184 |
| 29 | 123328495 |
| 30 | 927 |