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 | 5 |
| 2 | 11 |
| 3 | 19 |
| 4 | 30 |
| 5 | 46 |
| 6 | 70 |
| 7 | 106 |
| 8 | 160 |
| 9 | 241 |
| 10 | 363 |
| 11 | 547 |
| 12 | 824 |
| 13 | 1241 |
| 14 | 1869 |
| 15 | 2815 |
| 16 | 4240 |
| 17 | 6386 |
| 18 | 9618 |
| 19 | 14486 |
| 20 | 21818 |
| 21 | 32861 |
| 22 | 49493 |
| 23 | 74543 |
| 24 | 112272 |
| 25 | 169097 |
| 26 | 254683 |
| 27 | 383587 |
| 28 | 577734 |
| 29 | 870146 |
| 30 | 1310558 |
| 31 | 1973878 |
| 32 | 2972928 |
| 33 | 4477633 |
| 34 | 6743923 |
| 35 | 10157263 |
| 36 | 15298216 |
| 37 | 23041189 |
| 38 | 34703157 |
| 39 | 52267663 |
| 40 | 78722192 |