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 | 3 |
| 2 | 7 |
| 3 | 21 |
| 4 | 87 |
| 5 | 151 |
| 6 | 63 |
| 7 | 801 |
| 8 | 511 |
| 9 | 189 |
| 10 | 957 |
| 11 | 925 |
| 12 | 769 |
| 13 | 2877 |
| 14 | 1639 |
| 15 | 1087 |
| 16 | 3843 |
| 17 | 5803 |
| 18 | 4929 |
| 19 | 8757 |
| 20 | 10723 |
| 21 | 9883 |
| 22 | 24117 |
| 23 | 9613 |
| 24 | 28293 |
| 25 | 25737 |
| 26 | 3559 |
| 27 | 26997 |
| 28 | 35799 |
| 29 | 44863 |
| 30 | 52039 |
| 31 | 64785 |
| 32 | 23269 |
| 33 | 50845 |
| 34 | 51543 |
| 35 | 264145 |
| 36 | 155905 |
| 37 | 238131 |
| 38 | 178831 |
| 39 | 143389 |
| 40 | 400671 |
| 41 | 223177 |
| 42 | 181665 |