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 | 19 |
| 2 | 37 |
| 3 | 53 |
| 4 | 67 |
| 5 | 79 |
| 6 | 89 |
| 7 | 97 |
| 8 | 103 |
| 9 | 107 |
| 10 | 109 |
| 11 | 109 |
| 12 | 107 |
| 13 | 103 |
| 14 | 97 |
| 15 | 89 |
| 16 | 79 |
| 17 | 67 |
| 18 | 53 |
| 19 | 37 |
| 20 | 19 |
| 21 | -1 |
| 22 | -23 |
| 23 | -47 |
| 24 | -73 |
| 25 | -101 |
| 26 | -131 |
| 27 | -163 |
| 28 | -197 |
| 29 | -233 |
| 30 | -271 |
| 31 | -311 |
| 32 | -353 |
| 33 | -397 |
| 34 | -443 |
| 35 | -491 |
| 36 | -541 |
| 37 | -593 |
| 38 | -647 |
| 39 | -703 |
| 40 | -761 |
| 41 | -821 |
| 42 | -883 |
| 43 | -947 |
| 44 | -1013 |
| 45 | -1081 |
| 46 | -1151 |
| 47 | -1223 |
| 48 | -1297 |
| 49 | -1373 |
| 50 | -1451 |
| 51 | -1531 |
| 52 | -1613 |