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) |
|---|---|
| 0 | 1 |
| 1 | 5 |
| 2 | 13 |
| 3 | 41 |
| 4 | 61 |
| 5 | 113 |
| 6 | 145 |
| 7 | 221 |
| 8 | 365 |
| 9 | 421 |
| 10 | 613 |
| 11 | 761 |
| 12 | 841 |
| 13 | 1013 |
| 14 | 1301 |
| 15 | 1625 |
| 16 | 1741 |
| 17 | 2113 |
| 18 | 2381 |
| 19 | 2521 |
| 20 | 2965 |
| 21 | 3281 |
| 22 | 3785 |
| 23 | 4513 |
| 24 | 4901 |
| 25 | 5101 |
| 26 | 5513 |
| 27 | 5725 |
| 28 | 6161 |
| 29 | 7813 |
| 30 | 8321 |
| 31 | 9113 |
| 32 | 9385 |
| 33 | 10805 |
| 34 | 11101 |
| 35 | 12013 |
| 36 | 12961 |
| 37 | 13613 |
| 38 | 14621 |
| 39 | 15665 |
| 40 | 16021 |