a(n) is the smallest number k such that A384204(k) = n.

Terms

a(0) =6a(1) =1a(2) =36a(3) =144a(4) =576a(5) =2304a(6) =900a(7) =36864a(8) =147456a(9) =589824a(10) =5184a(11) =9437184a(12) =3600a(13) =150994944a(14) =603979776a(15) =20736a(16) =9663676416a(17) =38654705664a(18) =154618822656a(19) =618475290624a(20) =14400a(21) =82944a(24) =44100