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 | 6 |
| 2 | 162 |
| 3 | 1007 |
| 4 | 27371 |
| 5 | 170176 |
| 6 | 4625692 |
| 7 | 28759737 |
| 8 | 781741941 |
| 9 | 4860395546 |
| 10 | 132114388022 |
| 11 | 821406847267 |
| 12 | 22327331575711 |
| 13 | 138817757188116 |
| 14 | 3773319036295152 |
| 15 | 23460200964791597 |
| 16 | 637690917133880681 |
| 17 | 3964773963049779886 |
| 18 | 107769764995625835082 |
| 19 | 670046799755412800727 |