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 | 6 |
| 2 | 66 |
| 3 | 166 |
| 4 | 266 |
| 5 | 366 |
| 6 | 466 |
| 7 | 566 |
| 8 | 606 |
| 9 | 616 |
| 10 | 626 |
| 11 | 636 |
| 12 | 646 |
| 13 | 656 |
| 14 | 660 |
| 15 | 661 |
| 16 | 662 |
| 17 | 663 |
| 18 | 664 |
| 19 | 665 |
| 20 | 666 |
| 21 | 667 |
| 22 | 668 |
| 23 | 669 |
| 24 | 676 |
| 25 | 686 |
| 26 | 696 |
| 27 | 766 |
| 28 | 866 |
| 29 | 966 |
| 30 | 1066 |
| 31 | 1266 |
| 32 | 1366 |
| 33 | 1466 |
| 34 | 1566 |
| 35 | 1606 |
| 36 | 1626 |
| 37 | 1636 |
| 38 | 1646 |
| 39 | 1656 |
| 40 | 1660 |
| 41 | 1662 |
| 42 | 1663 |
| 43 | 1664 |
| 44 | 1665 |
| 45 | 1666 |