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 | 11 |
| 3 | 17 |
| 4 | 21 |
| 5 | 26 |
| 6 | 50 |
| 7 | 62 |
| 8 | 125 |
| 9 | 165 |
| 10 | 278 |
| 11 | 290 |
| 12 | 1227 |
| 13 | 1275 |
| 14 | 1325 |
| 15 | 2153 |
| 16 | 2450 |
| 17 | 2811 |
| 18 | 3327 |
| 19 | 5921 |
| 20 | 6321 |
| 21 | 7095 |
| 22 | 8657 |
| 23 | 8786 |
| 24 | 9687 |
| 25 | 12221 |
| 26 | 14163 |
| 27 | 30686 |
| 28 | 63975 |
| 29 | 73767 |
| 30 | 132551 |
| 31 | 356991 |
| 32 | 364797 |
| 33 | 442065 |
| 34 | 464483 |
| 35 | 559637 |
| 36 | 632297 |
| 37 | 972755 |
| 38 | 1685135 |
| 39 | 2408337 |
| 40 | 3974295 |
| 41 | 4592225 |