## 3. |
A = 1 Trivial. Completely symmetric. |

## 4. |
A = 1/3 = .333+ Trivial. Completely symmetric. |

## 5. |
A = 3 - 2√2 = .171+ Proved by Royce Peng, 1989. One of an infinite family of solutions. Horizontally symmetric. |

## 6. |
A = 1/8 = .125 Found by L. Yang, J. Z. Zhang, and Z. B. Zeng, 1991. One of an infinite family of solutions. Horizontally symmetric. |

## 7. |
A = 7/72 = .0972+ Found by David Cantrell, July 2006. 120 |

## 8. |
A = .0677+ Found by David Cantrell, July 2006. Not symmetric. |

## 9. |
A = 43/784 = .0548+ Found by David Cantrell, July 2006. 120 |

## 10. |
A = .0433+ Found by David Cantrell, June 2007. Not symmetric. |

## 11. |
A = .0360+ Found by David Cantrell, July 2006. Horizontally symmetric. |

## 12. |
A = .0310+ Found by David Cantrell, July 2006. Completely symmetric. |

## 13. |
A = .0260+ Found by David Cantrell, June 2007. 120 |

## 14. |
A = .0237+ Found by David Cantrell, June 2007. Not symmetric. |

## 15. |
A = .0210+ Found by David Cantrell, June 2007. 120 |

## 16. |
A = .0179+ Found by David Cantrell, June 2007. 120 |

More information is available at Mathworld.

Back to Erich's Packing Center.