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 | 10 |
| 2 | 171 |
| 3 | 2748 |
| 4 | 43981 |
| 5 | 703710 |
| 6 | 11259375 |
| 7 | 180150010 |
| 8 | 2882400171 |
| 9 | 46118402748 |
| 10 | 737894443981 |
| 11 | 11806311103710 |
| 12 | 188900977659375 |
| 13 | 3022415642550010 |
| 14 | 48358650280800171 |
| 15 | 773738404492802748 |
| 16 | 12379814471884843981 |
| 17 | 198077031550157503710 |
| 18 | 3169232504802520059375 |