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 | 11 |
| 2 | 10 |
| 3 | 102 |
| 4 | 1020 |
| 5 | 10010 |
| 6 | 101010 |
| 7 | 1009470 |
| 8 | 11741730 |
| 9 | 1001110110 |
| 10 | 10407767370 |
| 11 | 1000287585570 |
| 12 | 10293281928930 |
| 13 | 1001230315195110 |
| 14 | 13082761331670030 |
| 15 | 1004819888620217670 |
| 16 | 100015003602410826930 |
| 17 | 1922760350154212639070 |