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 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 3 |
| 6 | 3 |
| 7 | 1 |
| 8 | 7 |
| 9 | 9 |
| 10 | 2 |
| 11 | 1 |
| 12 | 15 |
| 13 | 27 |
| 14 | 12 |
| 15 | 4 |
| 16 | 1 |
| 17 | 31 |
| 18 | 81 |
| 19 | 56 |
| 20 | 22 |
| 21 | 4 |
| 22 | 1 |
| 23 | 63 |
| 24 | 243 |
| 25 | 240 |
| 26 | 118 |
| 27 | 30 |
| 28 | 6 |
| 29 | 1 |
| 30 | 127 |
| 31 | 729 |
| 32 | 992 |
| 33 | 610 |
| 34 | 196 |
| 35 | 44 |
| 36 | 4 |
| 37 | 1 |
| 38 | 255 |
| 39 | 2187 |
| 40 | 4032 |
| 41 | 3094 |
| 42 | 1230 |
| 43 | 324 |
| 44 | 48 |
| 45 | 7 |
| 46 | 1 |
| 47 | 511 |
| 48 | 6561 |
| 49 | 16256 |
| 50 | 15562 |
| 51 | 7564 |
| 52 | 2336 |
| 53 | 448 |
| 54 | 71 |
| 55 | 7 |
| 56 | 1 |
| 57 | 1023 |
| 58 | 19683 |
| 59 | 65280 |
| 60 | 77998 |
| 61 | 45990 |
| 62 | 16596 |
| 63 | 3840 |
| 64 | 685 |
| 65 | 83 |
| 66 | 9 |