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 | 1 |
| 1 | 20 |
| 2 | 110 |
| 3 | 340 |
| 4 | 780 |
| 5 | 1500 |
| 6 | 2570 |
| 7 | 4060 |
| 8 | 6040 |
| 9 | 8580 |
| 10 | 11750 |
| 11 | 15620 |
| 12 | 20260 |
| 13 | 25740 |
| 14 | 32130 |
| 15 | 39500 |
| 16 | 47920 |
| 17 | 57460 |
| 18 | 68190 |
| 19 | 80180 |
| 20 | 93500 |
| 21 | 108220 |
| 22 | 124410 |
| 23 | 142140 |
| 24 | 161480 |
| 25 | 182500 |
| 26 | 205270 |
| 27 | 229860 |
| 28 | 256340 |
| 29 | 284780 |
| 30 | 315250 |
| 31 | 347820 |
| 32 | 382560 |
| 33 | 419540 |
| 34 | 458830 |
| 35 | 500500 |
| 36 | 544620 |