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 | 10 |
| 3 | 19 |
| 4 | 91 |
| 5 | 100 |
| 6 | 172 |
| 7 | 244 |
| 8 | 820 |
| 9 | 829 |
| 10 | 901 |
| 11 | 973 |
| 12 | 1549 |
| 13 | 1621 |
| 14 | 2197 |
| 15 | 2773 |
| 16 | 7381 |
| 17 | 7390 |
| 18 | 7462 |
| 19 | 7534 |
| 20 | 8110 |
| 21 | 8182 |
| 22 | 8758 |
| 23 | 9334 |
| 24 | 13942 |
| 25 | 14014 |
| 26 | 14590 |
| 27 | 15166 |
| 28 | 19774 |
| 29 | 20350 |
| 30 | 24958 |
| 31 | 29566 |
| 32 | 66430 |
| 33 | 66439 |
| 34 | 66511 |
| 35 | 66583 |
| 36 | 67159 |
| 37 | 67231 |
| 38 | 67807 |
| 39 | 68383 |
| 40 | 72991 |
| 41 | 73063 |
| 42 | 73639 |
| 43 | 74215 |