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 | 4 |
| 2 | 12 |
| 3 | 29 |
| 4 | 58 |
| 5 | 111 |
| 6 | 188 |
| 7 | 305 |
| 8 | 462 |
| 9 | 679 |
| 10 | 968 |
| 11 | 1337 |
| 12 | 1806 |
| 13 | 2391 |
| 14 | 3104 |
| 15 | 3953 |
| 16 | 4978 |
| 17 | 6175 |
| 18 | 7568 |
| 19 | 9185 |
| 20 | 11030 |
| 21 | 13143 |
| 22 | 15516 |
| 23 | 18177 |
| 24 | 21150 |
| 25 | 24471 |
| 26 | 28152 |
| 27 | 32197 |
| 28 | 36678 |
| 29 | 41543 |
| 30 | 46828 |
| 31 | 52621 |
| 32 | 58874 |
| 33 | 65659 |
| 34 | 73000 |
| 35 | 80949 |
| 36 | 89462 |
| 37 | 98631 |
| 38 | 108396 |
| 39 | 118869 |
| 40 | 130102 |
| 41 | 142071 |