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 | 1 |
| 1 | 4 |
| 2 | 12 |
| 3 | 27 |
| 4 | 47 |
| 5 | 69 |
| 6 | 99 |
| 7 | 142 |
| 8 | 184 |
| 9 | 227 |
| 10 | 281 |
| 11 | 344 |
| 12 | 414 |
| 13 | 477 |
| 14 | 548 |
| 15 | 641 |
| 16 | 719 |
| 17 | 810 |
| 18 | 925 |
| 19 | 1028 |
| 20 | 1128 |
| 21 | 1239 |
| 22 | 1371 |
| 23 | 1491 |
| 24 | 1626 |
| 25 | 1774 |
| 26 | 1904 |
| 27 | 2069 |
| 28 | 2221 |
| 29 | 2363 |
| 30 | 2534 |
| 31 | 2721 |
| 32 | 2911 |
| 33 | 3076 |
| 34 | 3257 |
| 35 | 3459 |
| 36 | 3660 |
| 37 | 3862 |
| 38 | 4083 |
| 39 | 4317 |
| 40 | 4531 |
| 41 | 4731 |
| 42 | 4974 |
| 43 | 5238 |
| 44 | 5452 |
| 45 | 5721 |