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 | 0 |
| 2 | 2 |
| 3 | 5 |
| 4 | 11 |
| 5 | 20 |
| 6 | 35 |
| 7 | 56 |
| 8 | 86 |
| 9 | 125 |
| 10 | 179 |
| 11 | 248 |
| 12 | 338 |
| 13 | 449 |
| 14 | 590 |
| 15 | 761 |
| 16 | 971 |
| 17 | 1220 |
| 18 | 1523 |
| 19 | 1880 |
| 20 | 2306 |
| 21 | 2801 |
| 22 | 3386 |
| 23 | 4061 |
| 24 | 4847 |
| 25 | 5744 |
| 26 | 6782 |
| 27 | 7961 |
| 28 | 9311 |
| 29 | 10832 |
| 30 | 12563 |
| 31 | 14504 |
| 32 | 16694 |
| 33 | 19133 |
| 34 | 21875 |
| 35 | 24920 |
| 36 | 28322 |
| 37 | 32081 |
| 38 | 36266 |
| 39 | 40877 |
| 40 | 45983 |
| 41 | 51584 |