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 | 0 |
| 4 | 1 |
| 5 | 5 |
| 6 | 0 |
| 7 | 1 |
| 8 | 9 |
| 9 | 36 |
| 10 | 0 |
| 11 | 1 |
| 12 | 17 |
| 13 | 98 |
| 14 | 354 |
| 15 | 0 |
| 16 | 1 |
| 17 | 33 |
| 18 | 276 |
| 19 | 1300 |
| 20 | 4425 |
| 21 | 0 |
| 22 | 1 |
| 23 | 65 |
| 24 | 794 |
| 25 | 4890 |
| 26 | 20515 |
| 27 | 67171 |
| 28 | 0 |
| 29 | 1 |
| 30 | 129 |
| 31 | 2316 |
| 32 | 18700 |
| 33 | 96825 |
| 34 | 376761 |
| 35 | 1200304 |
| 36 | 0 |
| 37 | 1 |
| 38 | 257 |
| 39 | 6818 |
| 40 | 72354 |
| 41 | 462979 |
| 42 | 2142595 |
| 43 | 7907396 |
| 44 | 24684612 |
| 45 | 0 |
| 46 | 1 |
| 47 | 513 |
| 48 | 20196 |
| 49 | 282340 |
| 50 | 2235465 |
| 51 | 12313161 |
| 52 | 52666768 |
| 53 | 186884496 |
| 54 | 574304985 |
| 55 | 0 |
| 56 | 1 |
| 57 | 1025 |
| 58 | 60074 |
| 59 | 1108650 |
| 60 | 10874275 |
| 61 | 71340451 |
| 62 | 353815700 |
| 63 | 1427557524 |
| 64 | 4914341925 |
| 65 | 14914341925 |