a(n) = A003415(A324886(n)).

Terms

a(0) =1a(1) =1a(2) =1a(3) =6a(4) =1a(5) =10a(6) =1a(7) =8a(8) =12a(9) =14a(10) =1a(11) =500a(12) =1a(13) =22a(14) =100842a(15) =240a(16) =1a(17) =840a(18) =1a(19) =1372a(20) =966306a(21) =26a(22) =1a(23) =650a(24) =465850a(25) =34a(26) =16a(27) =5324a(28) =1a(29) =148862