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 | 70 |
| 2 | 350 |
| 3 | 4970 |
| 4 | 5110 |
| 5 | 7070 |
| 6 | 8890 |
| 7 | 9590 |
| 8 | 9730 |
| 9 | 13790 |
| 10 | 15610 |
| 11 | 15890 |
| 12 | 16030 |
| 13 | 17990 |
| 14 | 18410 |
| 15 | 19810 |
| 16 | 21770 |
| 17 | 22190 |
| 18 | 23170 |
| 19 | 24290 |
| 20 | 25550 |
| 21 | 26530 |
| 22 | 26810 |
| 23 | 27230 |
| 24 | 28070 |
| 25 | 30310 |
| 26 | 32270 |
| 27 | 32690 |
| 28 | 33530 |
| 29 | 34930 |
| 30 | 36470 |
| 31 | 38990 |
| 32 | 39830 |
| 33 | 40390 |
| 34 | 43190 |
| 35 | 44450 |
| 36 | 45010 |
| 37 | 48650 |
| 38 | 49070 |
| 39 | 49630 |
| 40 | 51730 |