Least integer with n pentagonal divisors.

Terms

a(0) =1a(1) =5a(2) =35a(3) =70a(4) =210a(5) =420a(6) =2310a(7) =4620a(8) =18480a(9) =32340a(10) =60060a(11) =120120a(12) =240240a(13) =720720a(14) =1261260a(15) =1141140a(16) =2042040a(17) =4084080a(18) =4564560a(19) =13693680a(20) =19399380a(21) =58198140a(22) =95855760a(23) =38798760a(24) =116396280a(25) =193993800a(26) =77597520a(27) =232792560a(28) =543182640a(29) =387987600