Denominator of Product_{j=1..n-1} ((3*j+1)/(3*j+2)).

Terms

a(0) =1a(1) =5a(2) =10a(3) =11a(4) =22a(5) =187a(6) =935a(7) =1955a(8) =391a(9) =11339a(10) =45356a(11) =1334a(12) =2668a(13) =27347a(14) =601634a(15) =614713a(16) =6147130a(17) =162898945a(18) =11847196a(19) =12051458a(20) =24102916a(21) =30128645a(22) =512186965a(23) =7273054903a(24) =7273054903a(25) =80003603933a(26) =400018019665a(27) =809792576395a(28) =9526971487a(29) =77081860213