Numbers with 7 odd divisors.

Terms

a(0) =729a(1) =1458a(2) =2916a(3) =5832a(4) =11664a(5) =15625a(6) =23328a(7) =31250a(8) =46656a(9) =62500a(10) =93312a(11) =117649a(12) =125000a(13) =186624a(14) =235298a(15) =250000a(16) =373248a(17) =470596a(18) =500000a(19) =746496a(20) =941192a(21) =1000000a(22) =1492992a(23) =1771561a(24) =1882384a(25) =2000000a(26) =2985984a(27) =3543122a(28) =3764768a(29) =4000000