Multiples of 24.

Terms

a(0) =0a(1) =24a(2) =48a(3) =72a(4) =96a(5) =120a(6) =144a(7) =168a(8) =192a(9) =216a(10) =240a(11) =264a(12) =288a(13) =312a(14) =336a(15) =360a(16) =384a(17) =408a(18) =432a(19) =456a(20) =480a(21) =504a(22) =528a(23) =552a(24) =576a(25) =600a(26) =624a(27) =648a(28) =672a(29) =696