T(n) = R(4n+2)/(R(2)*R(2n+1)) T( 1) = 91 = 7*13 T( 2) = 9091 = prime T( 3) = 909091 = prime T( 4) = 90909091 = 7*13*19*52579 T( 5) = 9090909091 = 11*23*4093*8779 T( 6) = 909090909091 = 859*1058313049 T( 7) = 90909090909091 = 7*13*211*241*2161*9091 T( 8) = 9090909090909091 = 103*4013*21993833369 T( 9) = 909090909090909091 = prime T(10) = 90909090909090909091 = 7^2*13*127*2689*459691*909091 T(11) = 9090909090909090909091 = 47*139*2531*549797184491917 T(12) = 909090909090909090909091 = 251*5051*9091*78875943472201 T(13) = 90909090909090909090909091 = 7*13*19*52579*70541929*14175966169 T(14) = 9090909090909090909090909091 = 59*154083204930662557781201849 T(15) = 909090909090909090909090909091 = prime T(16) = 90909090909090909090909090909091 = 7*11*13*23*4093*8779*599144041*183411838171 T(17) = 9090909090909090909090909090909091 = 9091*909091*4147571*265212793249617641 T(18) = 909090909090909090909090909090909091 = 7253*422650073734453*296557347313446299 T(19) = 90909090909090909090909090909090909091 = 7*13^2*157*859*6397*216451*1058313049*388847808493 T(20) = 9090909090909090909090909090909090909091 = 2670502781396266997*3404193829806058997303 T(21) = 909090909090909090909090909090909090909091 = 57009401*2182600451*7306116556571817748755241 T(22) = 90909090909090909090909090909090909090909091 = 7*13*19*211*241*2161*9091*29611*52579*3762091*8985695684401 T(23) = 9090909090909090909090909090909090909090909091 = 6299*4855067598095567*297262705009139006771611927 T(24) = 909090909090909090909090909090909090909090909091 = 197*909091*5076141624365532994918781726395939035533 T(25) = 90909090909090909090909090909090909090909090909091 = 7*13*103*4013*21993833369*291078844423*377526955309799110357 T(26) = 9090909090909090909090909090909090909090909090909091 = prime T(27) = 909090909090909090909090909090909090909090909090909091 = 11*23*331*4093*5171*8779*9091*20163494891*318727841165674579776721 T(28) = 90909090909090909090909090909090909090909090909090909091 = 7*13*1458973*909090909090909091*753201806271328462547977919407 T(29) = 9090909090909090909090909090909090909090909090909090909091 = 1889*1090805842068098677837*4411922770996074109644535362851087 T(30) = 909090909090909090909090909090909090909090909090909090909091 = 81131*11205222530116836855321528257890437575145023592596037161 T(31) = 90909090909090909090909090909090909090909090909090909090909091 = 7^2*13*19*127*2689*52579*459691*909091*5274739*189772422673235585874485732659 T(32) = 9090909090909090909090909090909090909090909090909090909090909091 = 131*859*9091*1058313049*8396862596258693901610602298557167100076327481 T(33) = 909090909090909090909090909090909090909090909090909090909090909091 = prime T(34) = 90909090909090909090909090909090909090909090909090909090909090909091 = 7*13*47*139*2531*31051*143574021480139*549797184491917*24649445347649059192745899 T(35) = 9090909090909090909090909090909090909090909090909090909090909090909091 = 290249*31321069464181068355415209323405389541706979493156189716729115659 T(36) = 909090909090909090909090909090909090909090909090909090909090909090909091 = 293*10826684964539959837294043117*286578888976194997999922592330908602103011