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) |
|---|---|
| 3 | 1 |
| 4 | 5 |
| 5 | 12 |
| 6 | 23 |
| 7 | 39 |
| 8 | 62 |
| 9 | 91 |
| 10 | 127 |
| 11 | 171 |
| 12 | 228 |
| 13 | 294 |
| 14 | 370 |
| 15 | 461 |
| 16 | 561 |
| 17 | 677 |
| 18 | 811 |
| 19 | 955 |
| 20 | 1121 |
| 21 | 1303 |
| 22 | 1499 |
| 23 | 1719 |
| 24 | 1960 |
| 25 | 2218 |
| 26 | 2499 |
| 27 | 2806 |
| 28 | 3131 |
| 29 | 3485 |
| 30 | 3868 |
| 31 | 4274 |
| 32 | 4706 |
| 33 | 5166 |
| 34 | 5658 |
| 35 | 6175 |
| 36 | 6725 |
| 37 | 7309 |
| 38 | 7923 |
| 39 | 8572 |
| 40 | 9256 |
| 41 | 9972 |
| 42 | 10728 |
| 43 | 11521 |
| 44 | 12349 |
| 45 | 13218 |
| 46 | 14126 |
| 47 | 15072 |