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 | 25 |
| 2 | 121 |
| 3 | 471663 |
| 4 | 931225 |
| 5 | 4473225 |
| 6 | 6953931 |
| 7 | 7301441 |
| 8 | 10713728 |
| 9 | 13246317 |
| 10 | 17332133 |
| 11 | 19367424 |
| 12 | 34706961 |
| 13 | 36310761 |
| 14 | 54363717 |
| 15 | 68714219 |
| 16 | 73553125 |
| 17 | 73641071 |
| 18 | 74390183 |
| 19 | 93478133 |
| 20 | 102712448 |
| 21 | 102941361 |
| 22 | 109502361 |
| 23 | 113162997 |
| 24 | 115521875 |
| 25 | 120934784 |
| 26 | 134179011 |
| 27 | 134381673 |
| 28 | 134472875 |
| 29 | 135478125 |