1045~...t.101.123251227pnn^2n2kpnn^2pn+1-pn=pnn^2=nlnpnn^2=lnpn^2pn+1-pn=lnpn^2pn+1-pn=lnpn^2pn+1-pnlnpn^2=1n1229AnnalsofMathetics1