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 | 7 |
| 2 | 15 |
| 3 | 71 |
| 4 | 106 |
| 5 | 273 |
| 6 | 486 |
| 7 | 961 |
| 8 | 1563 |
| 9 | 3040 |
| 10 | 4692 |
| 11 | 8199 |
| 12 | 12773 |
| 13 | 20919 |
| 14 | 31569 |
| 15 | 50552 |
| 16 | 74368 |
| 17 | 114504 |
| 18 | 167366 |
| 19 | 250033 |
| 20 | 358845 |
| 21 | 527650 |
| 22 | 745688 |
| 23 | 1073784 |
| 24 | 1504452 |
| 25 | 2129317 |
| 26 | 2947224 |
| 27 | 4122518 |
| 28 | 5644462 |
| 29 | 7792122 |
| 30 | 10585876 |
| 31 | 14446420 |
| 32 | 19450323 |
| 33 | 26307536 |
| 34 | 35131220 |
| 35 | 47077341 |
| 36 | 62449405 |
| 37 | 82987854 |
| 38 | 109317927 |
| 39 | 144252191 |