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 | 210 |
| 2 | 630 |
| 3 | 1050 |
| 4 | 1470 |
| 5 | 1890 |
| 6 | 2310 |
| 7 | 2730 |
| 8 | 3150 |
| 9 | 3570 |
| 10 | 3990 |
| 11 | 4410 |
| 12 | 4830 |
| 13 | 5250 |
| 14 | 5670 |
| 15 | 6090 |
| 16 | 6510 |
| 17 | 6930 |
| 18 | 7350 |
| 19 | 7770 |
| 20 | 8190 |
| 21 | 8610 |
| 22 | 9030 |
| 23 | 9450 |
| 24 | 9870 |
| 25 | 10290 |
| 26 | 10710 |
| 27 | 11130 |
| 28 | 11550 |
| 29 | 11970 |
| 30 | 12390 |
| 31 | 12810 |
| 32 | 13230 |
| 33 | 13650 |
| 34 | 14070 |
| 35 | 14490 |
| 36 | 14910 |
| 37 | 15330 |
| 38 | 15750 |
| 39 | 16170 |
| 40 | 16590 |
| 41 | 17010 |