Expansion of Product_{k>=1} 1/(1-x^k)^(k*(k-1)*(k-2)).

Terms

a(0) =1a(1) =0a(2) =0a(3) =6a(4) =24a(5) =60a(6) =141a(7) =354a(8) =996a(9) =2720a(10) =7194a(11) =18306a(12) =46154a(13) =115506a(14) =288195a(15) =713210a(16) =1749732a(17) =4253148a(18) =10259302a(19) =24573390a(20) =58491312a(21) =138371354a(22) =325415727a(23) =760899396a(24) =1769420183a(25) =4093054602a(26) =9420739965a(27) =21578842582a(28) =49199229066a(29) =111672215658