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 | 11 |
| 2 | 13 |
| 3 | 29 |
| 4 | 31 |
| 5 | 137 |
| 6 | 139 |
| 7 | 191 |
| 8 | 193 |
| 9 | 461 |
| 10 | 463 |
| 11 | 659 |
| 12 | 661 |
| 13 | 821 |
| 14 | 823 |
| 15 | 1091 |
| 16 | 1093 |
| 17 | 1721 |
| 18 | 1723 |
| 19 | 2027 |
| 20 | 2029 |
| 21 | 2081 |
| 22 | 2083 |
| 23 | 2711 |
| 24 | 2713 |
| 25 | 3359 |
| 26 | 3361 |
| 27 | 3539 |
| 28 | 3541 |
| 29 | 3917 |
| 30 | 3919 |
| 31 | 6131 |
| 32 | 6133 |
| 33 | 6761 |
| 34 | 6763 |
| 35 | 7589 |
| 36 | 7591 |
| 37 | 7877 |
| 38 | 7879 |
| 39 | 7949 |
| 40 | 7951 |
| 41 | 8219 |
| 42 | 8221 |
| 43 | 9461 |
| 44 | 9463 |
| 45 | 9857 |