经验:a(n)=2*a(n-1)+30*a(n-2)-62*a*a(n-16)+15777450*a-169344630*a(n-23)-56448210*a(n-24)+282241050*a 37)-65132550*a(n-38)-282241050*a(n-39)+56448210*a(-n40)+169344630*a(n41)-40320150*a(n-42)-88704330*a+8990*a(n-57)-4030*a(n-58)-930*a+a(n-64)
n mod 2=0的经验公式:a(n)=(1/29548117651778242560000)*n^32+(7/9233786610993070080000)*n ^31+(7/85498024175861760000)*n ^30+(5243/923378610993070008000)*n*29+96185277197844480000)*n^25+(1279779727/7124835347988480000)*n^24+(77545763309/24046319299461120000 18+(2031366183004879/375723739054080000)*n^17+(55903810241301923/1502894956216320000)*n^16+(2612985694229/115964169920000)*n*15+(84611785049939/70448201072640000)*n^14+(9906091474459353/1761205026816000)*n=13+(752888852117/326149079040000)*n#12+(910635590737483738373/11007531760000)*n ^11+(70894521213893131/27518828544000)*n^10+(5294479580641027/7644119040000)*n^9+(12186324387089641/7644119040000)*n^8+(24741813694283/7962624000)*n*7+(16771060400671/3317760000)*n_6+(93056990999/13824000)*n ^5+(658151479/92160)*n~4+(1113469/192)*n_3+(54115/16)*n~2+1260*n+225
n mod 2=1:a(n)=(1/295481171551778242560000)*n^32+(7/9233786610993070080000)*n^31+(1513/184567573221986140160000)*n^30+(10507/18456757322198614016000)*n^29+(10537219/3693514464 43972280320000)*n^28+(101613407/9233786610993070080000)*n^27+(1254630283/3693514464 4397228032000)*n^26+(79578454319/923378661099307008000)0000)*n^25+(13531572555887/73870292887944560640000)*n^24+(30546647311187/9233786610993080000)*n*23+(37898002769801/738702928879445606400)*n=22+(6360093759255299/9233786610993070080000)*n ^21+(297578101705581/3693514644397228032000)*n ^19+(2736237844091525131/3693514644397228032000)*n^18+(540993042212466858539/9233786610993070080000)*n^17+138824821829/3693514644397228032000)*n^12+(60812335346478039487891/615585774066204672000)*n^11+262400)*n^6+(106193495738755717173/112589999068426240)*n^5+(93356331606752896395/9007199254740992)*n_4+(19692809375944600665/2251799813685248)*n_3+(23941990752512325/4503599627496)*n~2+(46683424751226325/2251799913685244)*n+(2803429797660300625/72057594037927936)
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