The n-th highly composite number equals the a(n)-th composite number, for n >= 3.

Terms

a(0) =0a(1) =0a(2) =1a(3) =2a(4) =6a(5) =14a(6) =24a(7) =32a(8) =42a(9) =89a(10) =138a(11) =187a(12) =287a(13) =591a(14) =693a(15) =1054a(16) =1416a(17) =2151a(18) =4364a(19) =6600a(20) =8842a(21) =13354a(22) =17879a(23) =22418a(24) =24697a(25) =40653a(26) =45227a(27) =49811a(28) =75040a(29) =100357