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 | 19 |
| 2 | 79 |
| 3 | 179 |
| 4 | 319 |
| 5 | 499 |
| 6 | 719 |
| 7 | 979 |
| 8 | 1279 |
| 9 | 1619 |
| 10 | 1999 |
| 11 | 2419 |
| 12 | 2879 |
| 13 | 3379 |
| 14 | 3919 |
| 15 | 4499 |
| 16 | 5119 |
| 17 | 5779 |
| 18 | 6479 |
| 19 | 7219 |
| 20 | 7999 |
| 21 | 8819 |
| 22 | 9679 |
| 23 | 10579 |
| 24 | 11519 |
| 25 | 12499 |
| 26 | 13519 |
| 27 | 14579 |
| 28 | 15679 |
| 29 | 16819 |
| 30 | 17999 |
| 31 | 19219 |
| 32 | 20479 |
| 33 | 21779 |
| 34 | 23119 |
| 35 | 24499 |
| 36 | 25919 |
| 37 | 27379 |
| 38 | 28879 |
| 39 | 30419 |
| 40 | 31999 |
| 41 | 33619 |
| 42 | 35279 |