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 | 44 |
| 2 | 66 |
| 3 | 99 |
| 4 | 494 |
| 5 | 646 |
| 6 | 946 |
| 7 | 964 |
| 8 | 969 |
| 9 | 994 |
| 10 | 4646 |
| 11 | 4669 |
| 12 | 4949 |
| 13 | 4966 |
| 14 | 4994 |
| 15 | 4996 |
| 16 | 6446 |
| 17 | 6466 |
| 18 | 6494 |
| 19 | 6946 |
| 20 | 6964 |
| 21 | 6969 |
| 22 | 6994 |
| 23 | 9494 |
| 24 | 9499 |
| 25 | 9644 |
| 26 | 9669 |
| 27 | 9694 |
| 28 | 9699 |
| 29 | 9994 |
| 30 | 44446 |
| 31 | 44466 |
| 32 | 44644 |
| 33 | 44666 |
| 34 | 44994 |
| 35 | 46446 |
| 36 | 46466 |
| 37 | 46646 |
| 38 | 46669 |
| 39 | 46694 |
| 40 | 46699 |
| 41 | 46949 |