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 | 610 |
| 2 | 52591 |
| 3 | 1477240 |
| 4 | 22852913 |
| 5 | 243933798 |
| 6 | 1989679315 |
| 7 | 13140481520 |
| 8 | 73068868012 |
| 9 | 352040804450 |
| 10 | 1502130487437 |
| 11 | 5774921786002 |
| 12 | 20281095690376 |
| 13 | 65798275499953 |
| 14 | 199037907806762 |
| 15 | 565735226772194 |
| 16 | 1520829902726663 |
| 17 | 3888227083552907 |