Denominator of the sum of inverse products of parts in all strict partitions of n.

Terms

a(0) =1a(1) =1a(2) =2a(3) =6a(4) =12a(5) =60a(6) =120a(7) =280a(8) =168a(9) =210a(10) =1680a(11) =2640a(12) =332640a(13) =4324320a(14) =8648640a(15) =43243200a(16) =900900a(17) =735134400a(18) =3150576a(19) =2618916300a(20) =83805321600a(21) =586637251200a(22) =586637251200a(23) =749592043200a(25) =642507465600a(27) =41644002400