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) |
|---|---|
| 0 | 0 |
| 1 | 3 |
| 2 | 13 |
| 3 | 28 |
| 4 | 48 |
| 5 | 73 |
| 6 | 103 |
| 7 | 152 |
| 8 | 192 |
| 9 | 273 |
| 10 | 323 |
| 11 | 444 |
| 12 | 504 |
| 13 | 673 |
| 14 | 743 |
| 15 | 968 |
| 16 | 1048 |
| 17 | 1337 |
| 18 | 1427 |
| 19 | 1788 |
| 20 | 1888 |
| 21 | 2329 |
| 22 | 2439 |
| 23 | 2968 |
| 24 | 3088 |
| 25 | 3713 |
| 26 | 3843 |
| 27 | 4572 |
| 28 | 4712 |
| 29 | 5553 |
| 30 | 5703 |
| 31 | 6664 |
| 32 | 6824 |
| 33 | 7913 |
| 34 | 8083 |
| 35 | 9308 |
| 36 | 9488 |
| 37 | 10857 |
| 38 | 11047 |
| 39 | 12568 |
| 40 | 12768 |
| 41 | 14449 |
| 42 | 14659 |