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 | 625 |
| 3 | 3969 |
| 4 | 15129 |
| 5 | 43681 |
| 6 | 105625 |
| 7 | 225625 |
| 8 | 439569 |
| 9 | 797449 |
| 10 | 1366561 |
| 11 | 2235025 |
| 12 | 3515625 |
| 13 | 5349969 |
| 14 | 7912969 |
| 15 | 11417641 |
| 16 | 16120225 |
| 17 | 22325625 |
| 18 | 30393169 |
| 19 | 40742689 |
| 20 | 53860921 |
| 21 | 70308225 |
| 22 | 90725625 |
| 23 | 115842169 |
| 24 | 146482609 |
| 25 | 183575401 |
| 26 | 228161025 |