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 | 14 |
| 3 | 55 |
| 4 | 140 |
| 5 | 285 |
| 6 | 506 |
| 7 | 819 |
| 8 | 1240 |
| 9 | 1785 |
| 10 | 2470 |
| 11 | 3311 |
| 12 | 4324 |
| 13 | 5525 |
| 14 | 6930 |
| 15 | 8555 |
| 16 | 10416 |
| 17 | 12529 |
| 18 | 14910 |
| 19 | 17575 |
| 20 | 20540 |
| 21 | 23821 |
| 22 | 27434 |
| 23 | 31395 |
| 24 | 35720 |
| 25 | 40425 |
| 26 | 45526 |
| 27 | 51039 |
| 28 | 56980 |
| 29 | 63365 |
| 30 | 70210 |
| 31 | 77531 |
| 32 | 85344 |
| 33 | 93665 |
| 34 | 102510 |
| 35 | 111895 |
| 36 | 121836 |
| 37 | 132349 |
| 38 | 143450 |
| 39 | 155155 |
| 40 | 167480 |