n mod 2=0的经验公式:a(n)=(1/46168933054965350400)*n^28+(23/5771116631870668800)*n=27+(451/1282470362637926400)*n~26+(19057/961852771978444800)*n ^25+400)*n^21+(12056968741/60115798248652800)*n^20+(4207062883/1502894956216320)*n^19+506669475617/58706834227200)*n^12+(24549610146481/14676708556800)*n^11+(665395240637933/11007531417600+(34907687/11520)*n^3+(185039/96)*n*2+(3115/4)*n+150
n mod 2=1:a(n)=(1/41689833054965350400)*n^28+(23/5771116631870668800)*n^27+(325/923378661099307008)*n^26+(114641/5771116631870668800)*n^25+(37156691/41689833054965350400)*n^24+(71922841/2885558315935334400)*n^23+(7082252513/115233263741337600)*n^22+(35566445347/2885558315935334400)*n^21+(9501813256121/46168933054965350400)*n^20+(16707362824109/5771116631870668800)*n*19+/5771116631870668800)*编号14+(1310460363060759641/1442779157967667200)编号13+(208068829025881411739/46168933054965350400)编号12+(111506687915337527297/5771116631870668800)编号11+(1646408524090171699187/23084466527482675200)编号10+(43373650410367917/1923705543956889600)编号9+(345397513574221281/5699868278400)*n^8+(29299006250741638439/21374506043965440)*n^7+(14674937650257198937/5699868278390784)*n*6+(207995809091667065/527658133248 25/35184372088832)*无(71508843479390625/281474976710656)