Numbers of the form 216*p^3, where p is a Pythagorean prime (A002144).

Terms

a(0) =27000a(1) =474552a(2) =1061208a(3) =5268024a(4) =10941048a(5) =14886936a(6) =32157432a(7) =49027896a(8) =84027672a(9) =152273304a(10) =197137368a(11) =222545016a(12) =279726264a(13) =311665752a(14) =555412248a(15) =714516984a(16) =835896888a(17) =1118386872a(18) =1280824056a(19) =1552836312a(20) =1651400568a(21) =2593941624a(22) =2732256792a(23) =3023464536a(24) =3666512088