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 | 225 |
| 3 | 1225 |
| 4 | 1521 |
| 5 | 2025 |
| 6 | 2500 |
| 7 | 3025 |
| 8 | 4225 |
| 9 | 5041 |
| 10 | 11025 |
| 11 | 12544 |
| 12 | 13225 |
| 13 | 21025 |
| 14 | 22500 |
| 15 | 24025 |
| 16 | 34225 |
| 17 | 35344 |
| 18 | 42025 |
| 19 | 44521 |
| 20 | 52441 |
| 21 | 55225 |
| 22 | 112225 |
| 23 | 122500 |
| 24 | 133225 |
| 25 | 135424 |
| 26 | 150544 |
| 27 | 151321 |
| 28 | 152100 |
| 29 | 202500 |
| 30 | 212521 |
| 31 | 235225 |
| 32 | 245025 |
| 33 | 250000 |
| 34 | 251001 |
| 35 | 252004 |
| 36 | 255025 |
| 37 | 302500 |