ID | Description / Title |

**351**
| Hexagonal orchards |

**352**
| Blood tests |

**353**
| Risky moon |

**354**
| Distances in a bee's honeycomb |

**355**
| Maximal coprime subset |

**356**
| Largest roots of cubic polynomials |

**357**
| Prime generating integers |

**358**
| Cyclic numbers |

**359**
| Hilbert's New Hotel |

**360**
| Scary Sphere |

**361**
| Subsequence of Thue-Morse sequence |

**362**
| Squarefree factors |

**363**
| Bézier Curves |

**364**
| Comfortable distance |

**365**
| A huge binomial coefficient |

**366**
| Stone Game III |

**367**
| Bozo sort |

**368**
| A Kempner-like series |

**369**
| Badugi |

**370**
| Geometric triangles |

**371**
| Licence plates |

**372**
| Pencils of rays |

**373**
| Circumscribed Circles |

**374**
| Maximum Integer Partition Product |

**375**
| Minimum of subsequences |

**376**
| Nontransitive sets of dice |

**377**
| Sum of digits - experience #13 |

**378**
| Triangle Triples |

**379**
| Least common multiple count |

**380**
| Amazing Mazes! |

**381**
| (prime-k) factorial |

**382**
| Generating polygons |

**383**
| Divisibility comparison between factorials |

**384**
| Rudin-Shapiro sequence |

**385**
| Ellipses inside triangles |

**386**
| Maximum length of an antichain |

**387**
| Harshad Numbers |

**388**
| Distinct Lines |

**389**
| Platonic Dice |

**390**
| Triangles with non rational sides and integral area |

**391**
| Hopping Game |

**392**
| Enmeshed unit circle |

**393**
| Migrating ants |

**394**
| Eating pie |

**395**
| Pythagorean tree |

**396**
| Weak Goodstein sequence |

**397**
| Triangle on parabola |

**398**
| Cutting rope |

**399**
| Squarefree Fibonacci Numbers |

**400**
| Fibonacci tree game |