1. | 2. | 3. | ||

s = 2 Trivial. | s = 2 + √2 = 3.414+ Trivial. | s = 2 + 1/√2 + √6/2 = 3.931+ Trivial. |

4. | 5. | 6. | ||

s = 4 Trivial. | s = 2 + √2 + √6 = 5.863+ Found by Erich Friedman in 1998. | s = 4 + √3 = 5.732+ Found by Erich Friedman in 1998. |

7. | 8. | 9. | ||

s = 5.985+ Found by David Cantrell in August 2006. | s = 6.946+ Found by Craig Clapp in August 2006. | s = 7.022+ Found by Erich Friedman in 1998. |

10. | 11. | 12. | ||

s = 4 + √3 + √2/2 + √6/2 = 7.663+ Found by Craig Clapp in October 2006. | s = 4 + √2 + √6 = 7.863+ Found by David Cantrell in July 2002. | s = 7.983+ Found by Craig Clapp in August 2006. |

13. | 14. | 15. | ||

s = 8.992+ Found by Craig Clapp in August 2006. | s = 9.055+ Found by Craig Clapp in August 2006. | s = 9.032+ Found by Craig Clapp in August 2006. |

16. | 17. | 18. | ||

s = 9.177+ Found by David Cantrell in July 2002. | s = 2 + 2√6 + 2√2 = 9.727+ Found by Clint Weaver in July 2002. | s = 10.276+ Found by Craig Clapp in August 2006. |

19. | 20. | 21. | ||

s = 10.348+ Found by Craig Clapp in August 2006. | s = 10.497+ Found by Craig Clapp in August 2006. | s = 10.530+ Found by Craig Clapp in September 2006. |

22. | 23. | 24. | ||

s = 10.764+ Found by Craig Clapp in August 2006. | s = 10.982+ Found by Craig Clapp in September 2006. | s = 8 + 2√3 = 11.464+ Found by David Cantrell in July 2002. |

Are these circle packings by Craig Clapp rigid? 15 16 16 16 19 20 21 22 22 22