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 | 55 |
| 2 | 286 |
| 3 | 910 |
| 4 | 2275 |
| 5 | 4900 |
| 6 | 9520 |
| 7 | 17136 |
| 8 | 29070 |
| 9 | 47025 |
| 10 | 73150 |
| 11 | 110110 |
| 12 | 161161 |
| 13 | 230230 |
| 14 | 322000 |
| 15 | 442000 |
| 16 | 596700 |
| 17 | 793611 |
| 18 | 1041390 |
| 19 | 1349950 |
| 20 | 1730575 |
| 21 | 2196040 |
| 22 | 2760736 |
| 23 | 3440800 |
| 24 | 4254250 |
| 25 | 5221125 |
| 26 | 6363630 |
| 27 | 7706286 |
| 28 | 9276085 |
| 29 | 11102650 |
| 30 | 13218400 |
| 31 | 15658720 |
| 32 | 18462136 |
| 33 | 21670495 |
| 34 | 25329150 |