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 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 90 |
| 5 | 122 |
| 6 | 344 |
| 7 | 9372 |
| 8 | 10112 |
| 9 | 30914 |
| 10 | 904312 |
| 11 | 1002012 |
| 12 | 3015114 |
| 13 | 90040102 |
| 14 | 100020012 |
| 15 | 300141014 |
| 16 | 9000772002 |
| 17 | 10002210012 |
| 18 | 30007060014 |
| 19 | 900008800002 |
| 20 | 1000014100012 |
| 21 | 3000012000014 |
| 22 | 90000335100002 |
| 23 | 100000060000012 |
| 24 | 300000181000014 |
| 25 | 9000000712000002 |
| 26 | 10000002210000012 |
| 27 | 30000003520000014 |