00361    a2200133   4500020001500000082001500015100001900030245006600049260003500115300002100150650001800171700002000189700001800209  a0387953329  a511.6bKRI  aKrizek, Michal  a17 lectures on fermat numbersbfrom number theory to geometry  aNew YorkbSpringerc2001g2001  axvii,257p.c24cm  aCombinatorics  aSomer, Lawrence  aLuca, Florian