a(n) is the smallest k such that A319100(k) = A025610(n).

Terms

a(0) =1a(1) =3a(2) =8a(3) =7a(4) =24a(5) =21a(6) =120a(7) =56a(8) =1320a(9) =63a(10) =168a(11) =22440a(12) =252a(13) =840a(14) =516120a(15) =504a(16) =9240a(17) =819a(18) =14967480a(19) =2184a(20) =157080a(21) =3276a(22) =613666680a(23) =10920a(24) =3612840a(25) =6552a(26) =28842333960a(27) =120120a(28) =15561a(29) =104772360