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 | 15 |
| 3 | 35 |
| 4 | 143 |
| 5 | 225 |
| 6 | 323 |
| 7 | 525 |
| 8 | 899 |
| 9 | 1225 |
| 10 | 1763 |
| 11 | 2145 |
| 12 | 3375 |
| 13 | 3599 |
| 14 | 4845 |
| 15 | 5005 |
| 16 | 5183 |
| 17 | 7875 |
| 18 | 10403 |
| 19 | 11305 |
| 20 | 11663 |
| 21 | 13485 |
| 22 | 18375 |
| 23 | 19043 |
| 24 | 20449 |
| 25 | 22499 |
| 26 | 26445 |
| 27 | 31465 |
| 28 | 32175 |
| 29 | 32399 |
| 30 | 36863 |
| 31 | 39203 |
| 32 | 42875 |
| 33 | 46189 |
| 34 | 50625 |
| 35 | 51983 |
| 36 | 53985 |
| 37 | 57599 |
| 38 | 61705 |