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 | 13 |
| 2 | 73 |
| 3 | 109 |
| 4 | 157 |
| 5 | 241 |
| 6 | 277 |
| 7 | 421 |
| 8 | 1549 |
| 9 | 3061 |
| 10 | 4561 |
| 11 | 4861 |
| 12 | 5701 |
| 13 | 6301 |
| 14 | 6829 |
| 15 | 8941 |
| 16 | 10429 |
| 17 | 13381 |
| 18 | 14029 |
| 19 | 14221 |
| 20 | 21169 |
| 21 | 22369 |
| 22 | 24049 |
| 23 | 26161 |
| 24 | 29761 |
| 25 | 30529 |
| 26 | 33601 |
| 27 | 39901 |
| 28 | 44221 |
| 29 | 45061 |
| 30 | 47581 |
| 31 | 55609 |
| 32 | 61609 |
| 33 | 62869 |
| 34 | 64381 |
| 35 | 74869 |
| 36 | 97549 |
| 37 | 121501 |
| 38 | 129061 |
| 39 | 133669 |
| 40 | 135661 |