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 | 40 |
| 2 | 1100 |
| 3 | 7330 |
| 4 | 25540 |
| 5 | 65930 |
| 6 | 136200 |
| 7 | 263010 |
| 8 | 458410 |
| 9 | 740550 |
| 10 | 1142740 |
| 11 | 1681640 |
| 12 | 2400970 |
| 13 | 3338850 |
| 14 | 4495510 |
| 15 | 5962220 |
| 16 | 7736150 |
| 17 | 9924580 |
| 18 | 12442880 |
| 19 | 15527670 |
| 20 | 19132140 |
| 21 | 23301600 |
| 22 | 28070620 |
| 23 | 33585800 |
| 24 | 39919140 |
| 25 | 47157510 |
| 26 | 55209750 |
| 27 | 64185300 |
| 28 | 74311940 |
| 29 | 85731780 |
| 30 | 98167130 |