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 | 3 |
| 3 | 11 |
| 4 | 17 |
| 5 | 41 |
| 6 | 73 |
| 7 | 101 |
| 8 | 137 |
| 9 | 251 |
| 10 | 257 |
| 11 | 271 |
| 12 | 353 |
| 13 | 401 |
| 14 | 449 |
| 15 | 641 |
| 16 | 751 |
| 17 | 1201 |
| 18 | 1409 |
| 19 | 1601 |
| 20 | 3541 |
| 21 | 4001 |
| 22 | 4801 |
| 23 | 5051 |
| 24 | 9091 |
| 25 | 10753 |
| 26 | 15361 |
| 27 | 16001 |
| 28 | 19841 |
| 29 | 21001 |
| 30 | 21401 |
| 31 | 24001 |
| 32 | 25601 |
| 33 | 27961 |
| 34 | 37501 |
| 35 | 40961 |
| 36 | 43201 |
| 37 | 60101 |
| 38 | 62501 |
| 39 | 65537 |
| 40 | 69857 |
| 41 | 76001 |
| 42 | 76801 |
| 43 | 160001 |
| 44 | 162251 |
| 45 | 163841 |
| 46 | 307201 |
| 47 | 453377 |
| 48 | 524801 |
| 49 | 544001 |
| 50 | 670001 |
| 51 | 952001 |
| 52 | 976193 |
| 53 | 980801 |