a(n) = the largest 4-digit number with exactly n divisors, a(n) = 0 if no such number exists.

Terms

a(0) =0a(1) =9973a(2) =9409a(3) =9998a(4) =2401a(5) =9981a(6) =0a(7) =9994a(8) =9025a(9) =9904a(10) =1024a(11) =9999a(12) =4096a(13) =9664a(14) =9801a(15) =9982a(16) =0a(17) =9972a(18) =0a(19) =9968a(20) =7744a(21) =7168a(22) =0a(23) =9975a(24) =1296a(25) =0a(26) =6400a(27) =9920a(28) =0a(29) =9680