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 | 1 |
| 2 | 6 |
| 3 | 26 |
| 4 | 71 |
| 5 | 155 |
| 6 | 295 |
| 7 | 511 |
| 8 | 826 |
| 9 | 1266 |
| 10 | 1860 |
| 11 | 2640 |
| 12 | 3641 |
| 13 | 4901 |
| 14 | 6461 |
| 15 | 8365 |
| 16 | 10660 |
| 17 | 13396 |
| 18 | 16626 |
| 19 | 20406 |
| 20 | 24795 |
| 21 | 29855 |
| 22 | 35651 |
| 23 | 42251 |
| 24 | 49726 |
| 25 | 58150 |
| 26 | 67600 |
| 27 | 78156 |
| 28 | 89901 |
| 29 | 102921 |
| 30 | 117305 |
| 31 | 133145 |
| 32 | 150536 |
| 33 | 169576 |
| 34 | 190366 |
| 35 | 213010 |
| 36 | 237615 |
| 37 | 264291 |
| 38 | 293151 |
| 39 | 324311 |