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 | 7 |
| 2 | 17 |
| 3 | 49 |
| 4 | 97 |
| 5 | 241 |
| 6 | 337 |
| 7 | 577 |
| 8 | 721 |
| 9 | 1057 |
| 10 | 1681 |
| 11 | 1921 |
| 12 | 2737 |
| 13 | 3361 |
| 14 | 3697 |
| 15 | 4417 |
| 16 | 5617 |
| 17 | 6961 |
| 18 | 7441 |
| 19 | 8977 |
| 20 | 10081 |
| 21 | 10657 |
| 22 | 12481 |
| 23 | 13777 |
| 24 | 15841 |
| 25 | 18817 |
| 26 | 20401 |
| 27 | 21217 |
| 28 | 22897 |
| 29 | 23761 |
| 30 | 25537 |
| 31 | 32257 |
| 32 | 34321 |
| 33 | 37537 |
| 34 | 38641 |
| 35 | 44401 |
| 36 | 45601 |
| 37 | 49297 |
| 38 | 53137 |
| 39 | 55777 |