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 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 2 |
| 5 | 4 |
| 6 | 4 |
| 7 | 8 |
| 8 | 8 |
| 9 | 16 |
| 10 | 15 |
| 11 | 30 |
| 12 | 26 |
| 13 | 52 |
| 14 | 42 |
| 15 | 84 |
| 16 | 64 |
| 17 | 128 |
| 18 | 93 |
| 19 | 186 |
| 20 | 130 |
| 21 | 260 |
| 22 | 176 |
| 23 | 352 |
| 24 | 232 |
| 25 | 464 |
| 26 | 299 |
| 27 | 598 |
| 28 | 378 |
| 29 | 756 |
| 30 | 470 |
| 31 | 940 |
| 32 | 576 |
| 33 | 1152 |
| 34 | 697 |
| 35 | 1394 |
| 36 | 834 |
| 37 | 1668 |
| 38 | 988 |
| 39 | 1976 |
| 40 | 1160 |
| 41 | 2320 |
| 42 | 1351 |
| 43 | 2702 |
| 44 | 1562 |
| 45 | 3124 |
| 46 | 1794 |
| 47 | 3588 |
| 48 | 2048 |
| 49 | 4096 |
| 50 | 2325 |
| 51 | 4650 |
| 52 | 2626 |
| 53 | 5252 |
| 54 | 2952 |
| 55 | 5904 |
| 56 | 3304 |
| 57 | 6608 |
| 58 | 3683 |
| 59 | 7366 |