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 | 26 |
| 2 | 215 |
| 3 | 511 |
| 4 | 1727 |
| 5 | 2743 |
| 6 | 7999 |
| 7 | 13823 |
| 8 | 54871 |
| 9 | 157463 |
| 10 | 238327 |
| 11 | 511999 |
| 12 | 728999 |
| 13 | 1330999 |
| 14 | 2628071 |
| 15 | 3374999 |
| 16 | 4410943 |
| 17 | 4741631 |
| 18 | 7077887 |
| 19 | 7301383 |
| 20 | 20123647 |
| 21 | 21484951 |
| 22 | 30959143 |
| 23 | 36594367 |
| 24 | 42144191 |
| 25 | 63044791 |
| 26 | 64964807 |
| 27 | 81746503 |
| 28 | 124999999 |
| 29 | 187149247 |
| 30 | 264609287 |
| 31 | 267089983 |