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 | 1 |
| 2 | 9 |
| 3 | 25 |
| 4 | 45 |
| 5 | 69 |
| 6 | 108 |
| 7 | 145 |
| 8 | 193 |
| 9 | 248 |
| 10 | 305 |
| 11 | 373 |
| 12 | 437 |
| 13 | 517 |
| 14 | 608 |
| 15 | 697 |
| 16 | 793 |
| 17 | 889 |
| 18 | 1005 |
| 19 | 1124 |
| 20 | 1245 |
| 21 | 1369 |
| 22 | 1510 |
| 23 | 1649 |
| 24 | 1789 |
| 25 | 1941 |
| 26 | 2109 |
| 27 | 2278 |
| 28 | 2449 |
| 29 | 2617 |
| 30 | 2809 |
| 31 | 2997 |
| 32 | 3202 |
| 33 | 3405 |
| 34 | 3613 |
| 35 | 3834 |
| 36 | 4049 |
| 37 | 4281 |
| 38 | 4509 |
| 39 | 4762 |
| 40 | 5013 |
| 41 | 5249 |
| 42 | 5521 |
| 43 | 5785 |
| 44 | 6068 |
| 45 | 6348 |
| 46 | 6621 |
| 47 | 6917 |