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 | 6 |
| 3 | 9 |
| 4 | 13 |
| 5 | 35 |
| 6 | 66 |
| 7 | 115 |
| 8 | 145 |
| 9 | 297 |
| 10 | 402 |
| 11 | 491 |
| 12 | 521 |
| 13 | 1217 |
| 14 | 2166 |
| 15 | 3397 |
| 16 | 3591 |
| 17 | 4641 |
| 18 | 4829 |
| 19 | 6810 |
| 20 | 6829 |
| 21 | 7978 |
| 22 | 8705 |
| 23 | 17676 |
| 24 | 21165 |
| 25 | 50722 |
| 26 | 52884 |
| 27 | 84763 |
| 28 | 121344 |
| 29 | 121482 |
| 30 | 162070 |
| 31 | 358839 |
| 32 | 560596 |
| 33 | 1463827 |
| 34 | 1593475 |
| 35 | 1668394 |
| 36 | 2086707 |
| 37 | 2164032 |
| 38 | 2517791 |
| 39 | 4364421 |
| 40 | 4970661 |
| 41 | 19572673 |
| 42 | 20471839 |
| 43 | 31904004 |
| 44 | 31960445 |
| 45 | 51887007 |