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 | 125 |
| 2 | 2197 |
| 3 | 4913 |
| 4 | 24389 |
| 5 | 50653 |
| 6 | 68921 |
| 7 | 148877 |
| 8 | 226981 |
| 9 | 389017 |
| 10 | 704969 |
| 11 | 912673 |
| 12 | 1030301 |
| 13 | 1295029 |
| 14 | 1442897 |
| 15 | 2571353 |
| 16 | 3307949 |
| 17 | 3869893 |
| 18 | 5177717 |
| 19 | 5929741 |
| 20 | 7189057 |
| 21 | 7645373 |
| 22 | 12008989 |
| 23 | 12649337 |
| 24 | 13997521 |
| 25 | 16974593 |
| 26 | 19465109 |
| 27 | 21253933 |