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) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 9 |
| 3 | 19 |
| 4 | 35 |
| 5 | 53 |
| 6 | 75 |
| 7 | 102 |
| 8 | 132 |
| 9 | 168 |
| 10 | 208 |
| 11 | 250 |
| 12 | 298 |
| 13 | 351 |
| 14 | 407 |
| 15 | 469 |
| 16 | 534 |
| 17 | 601 |
| 18 | 675 |
| 19 | 752 |
| 20 | 832 |
| 21 | 919 |
| 22 | 1009 |
| 23 | 1103 |
| 24 | 1203 |
| 25 | 1305 |
| 26 | 1410 |
| 27 | 1520 |
| 28 | 1634 |
| 29 | 1753 |
| 30 | 1878 |
| 31 | 2007 |
| 32 | 2138 |
| 33 | 2274 |
| 34 | 2414 |
| 35 | 2556 |
| 36 | 2704 |
| 37 | 2856 |
| 38 | 3012 |
| 39 | 3176 |
| 40 | 3343 |
| 41 | 3511 |
| 42 | 3684 |
| 43 | 3860 |
| 44 | 4040 |
| 45 | 4227 |
| 46 | 4417 |
| 47 | 4611 |