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 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 18 |
| 7 | 74 |
| 8 | 193 |
| 9 | 491 |
| 10 | 857 |
| 11 | 1695 |
| 12 | 2503 |
| 13 | 4321 |
| 14 | 5836 |
| 15 | 9200 |
| 16 | 11715 |
| 17 | 17284 |
| 18 | 21256 |
| 19 | 29805 |
| 20 | 35589 |
| 21 | 48156 |
| 22 | 56260 |
| 23 | 73766 |
| 24 | 84860 |
| 25 | 108495 |
| 26 | 123080 |
| 27 | 154298 |
| 28 | 172998 |
| 29 | 213045 |
| 30 | 236895 |
| 31 | 287260 |
| 32 | 316743 |
| 33 | 379465 |
| 34 | 415456 |
| 35 | 491930 |
| 36 | 535713 |
| 37 | 627879 |
| 38 | 680052 |
| 39 | 790401 |
| 40 | 851914 |
| 41 | 982130 |