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 | 27 |
| 2 | 147 |
| 3 | 507 |
| 4 | 867 |
| 5 | 1587 |
| 6 | 2187 |
| 7 | 3267 |
| 8 | 4107 |
| 9 | 5547 |
| 10 | 6627 |
| 11 | 8427 |
| 12 | 9747 |
| 13 | 11907 |
| 14 | 13467 |
| 15 | 15987 |
| 16 | 17787 |
| 17 | 20667 |
| 18 | 22707 |
| 19 | 25947 |
| 20 | 28227 |
| 21 | 31827 |
| 22 | 34347 |
| 23 | 38307 |
| 24 | 41067 |
| 25 | 45387 |
| 26 | 48387 |
| 27 | 53067 |
| 28 | 56307 |
| 29 | 61347 |
| 30 | 64827 |
| 31 | 70227 |
| 32 | 73947 |
| 33 | 79707 |
| 34 | 83667 |
| 35 | 89787 |
| 36 | 93987 |