Square numbers with more divisors than any smaller square number.

Terms

a(0) =1a(1) =4a(2) =16a(3) =36a(4) =144a(5) =576a(6) =900a(7) =3600a(8) =14400a(9) =32400a(10) =44100a(11) =129600a(12) =176400a(13) =705600a(14) =1587600a(15) =2822400a(16) =6350400a(17) =21344400a(18) =57153600a(19) =85377600a(20) =192099600a(21) =341510400a(22) =768398400a(23) =3073593600a(24) =6915585600a(25) =12294374400a(26) =14428814400a(27) =32464832400a(28) =57715257600a(29) =129859329600