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 | 10 |
| 3 | 120 |
| 4 | 190 |
| 5 | 210 |
| 6 | 300 |
| 7 | 630 |
| 8 | 780 |
| 9 | 820 |
| 10 | 990 |
| 11 | 1540 |
| 12 | 1770 |
| 13 | 1830 |
| 14 | 2080 |
| 15 | 2850 |
| 16 | 3160 |
| 17 | 3240 |
| 18 | 3570 |
| 19 | 4560 |
| 20 | 4950 |
| 21 | 5050 |
| 22 | 5460 |
| 23 | 6670 |
| 24 | 7140 |
| 25 | 7260 |
| 26 | 7750 |
| 27 | 9180 |
| 28 | 9730 |
| 29 | 9870 |
| 30 | 10440 |
| 31 | 12090 |
| 32 | 12720 |
| 33 | 12880 |
| 34 | 13530 |
| 35 | 15400 |
| 36 | 16110 |
| 37 | 16290 |
| 38 | 17020 |
| 39 | 19110 |
| 40 | 19900 |
| 41 | 20100 |
| 42 | 20910 |
| 43 | 23220 |