PNG  IHDR4hN0PLTE@@@ftRNSS pHYsetEXtTitleInftyEditor MathImageytEXtAuthorAdministrator*btEXtDescription $\displaystyle p_{m}(n, r+1) = \frac{n}{m}p_{m}(n, r)+\frac{m-(n-1)}{m}p_{m}(n-1, r)$*+tEXtCopyrightInftyProject@$tEXtCreation Time r'rr'rr {IDATxYk m N5 .LNp&`Qhॼ^HcPg"n^GGR^x=]5e]xͺI+y1rmCazズh"O >/8KM84C]2t=_PK9h\ $_*qp 9.F`}.ρjQ]r%2HJ{$FJf4i\z)qD+TF5$;Q-/@NYe"2U ,~ah(He oMB zeSy.}Piʮg]n,t.SfD[W*uu\οSyP Ӕ\s!fA` \=9dSΩ4lwۡVvby|c/rNvf:[YD PU/De-TzU1_K5?K]~m"H}2:j(WWy>s# ZdzwGJGg: oJG5]Qޗ BX9(g#ͧ<8 0v?WzI}OPԑ"ζRZ>Q\ÙLU3KF볓ii ЯsNT ?45+N!D.k%6+)2=/{^%219)Xsŷm7K\Fu rG1oz'hL,N>d &\]z'c$D5ia|/9})QFU$!Յlhx벏s{۹ \'/RrFfxSY$㩯\]M q6c8ީszOz7)( ?a!VƫNre Q+7[Tn*=ng&-&Zj6țc\3 Cdw Φ]h#dqT.zMS9HO+e9.8uKy5\xjՐN:hi@١nltq߷zҧ%-<]9SUxҧ%K÷tj9u|gQ~(?|>}IENDB`