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 | 5 |
| 2 | 20 |
| 3 | 71 |
| 4 | 153 |
| 5 | 366 |
| 6 | 668 |
| 7 | 1153 |
| 8 | 1822 |
| 9 | 3119 |
| 10 | 4448 |
| 11 | 6348 |
| 12 | 8559 |
| 13 | 11565 |
| 14 | 14976 |
| 15 | 21023 |
| 16 | 26220 |
| 17 | 33066 |
| 18 | 40306 |
| 19 | 49601 |
| 20 | 59354 |
| 21 | 76031 |
| 22 | 89248 |
| 23 | 106008 |
| 24 | 122909 |
| 25 | 143989 |
| 26 | 165196 |
| 27 | 200759 |
| 28 | 227660 |
| 29 | 261030 |
| 30 | 293736 |
| 31 | 333825 |
| 32 | 373110 |
| 33 | 438191 |
| 34 | 485952 |
| 35 | 544356 |
| 36 | 600523 |
| 37 | 668573 |
| 38 | 734072 |
| 39 | 841679 |
| 40 | 918988 |
| 41 | 1012578 |
| 42 | 1101374 |
| 43 | 1208065 |
| 44 | 1309426 |
| 45 | 1474943 |
| 46 | 1592000 |
| 47 | 1732656 |