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 | 13 |
| 2 | 61 |
| 3 | 145 |
| 4 | 265 |
| 5 | 421 |
| 6 | 613 |
| 7 | 841 |
| 8 | 1105 |
| 9 | 1405 |
| 10 | 1741 |
| 11 | 2113 |
| 12 | 2521 |
| 13 | 2965 |
| 14 | 3445 |
| 15 | 3961 |
| 16 | 4513 |
| 17 | 5101 |
| 18 | 5725 |
| 19 | 6385 |
| 20 | 7081 |
| 21 | 7813 |
| 22 | 8581 |
| 23 | 9385 |
| 24 | 10225 |
| 25 | 11101 |
| 26 | 12013 |
| 27 | 12961 |
| 28 | 13945 |
| 29 | 14965 |
| 30 | 16021 |
| 31 | 17113 |
| 32 | 18241 |
| 33 | 19405 |
| 34 | 20605 |
| 35 | 21841 |
| 36 | 23113 |
| 37 | 24421 |
| 38 | 25765 |
| 39 | 27145 |
| 40 | 28561 |
| 41 | 30013 |
| 42 | 31501 |