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 | 81 |
| 2 | 100 |
| 3 | 121 |
| 4 | 144 |
| 5 | 400 |
| 6 | 10000 |
| 7 | 10201 |
| 8 | 10404 |
| 9 | 12100 |
| 10 | 40000 |
| 11 | 1000000 |
| 12 | 1002001 |
| 13 | 1004004 |
| 14 | 1020100 |
| 15 | 1172889 |
| 16 | 1210000 |
| 17 | 1232100 |
| 18 | 2604996 |
| 19 | 4000000 |
| 20 | 4297329 |
| 21 | 4485924 |
| 22 | 6185169 |
| 23 | 11048976 |
| 24 | 11108889 |
| 25 | 12916836 |
| 26 | 14584761 |
| 27 | 16353936 |
| 28 | 23040000 |