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 | 14 |
| 2 | 196 |
| 3 | 932 |
| 4 | 3923 |
| 5 | 15839 |
| 6 | 66089 |
| 7 | 274310 |
| 8 | 1137227 |
| 9 | 4717144 |
| 10 | 19562408 |
| 11 | 81137237 |
| 12 | 336532615 |
| 13 | 1395776345 |
| 14 | 5789011066 |
| 15 | 24010216811 |
| 16 | 99583798522 |
| 17 | 413029045498 |
| 18 | 1713057493953 |
| 19 | 7104991166089 |
| 20 | 29468317523707 |
| 21 | 122221341928692 |