Number of reduced 3 X 3 semimagic squares with magic sum n.

Terms

a(0) =72a(1) =144a(2) =288a(3) =504a(4) =720a(5) =1152a(6) =1512a(7) =2160a(8) =2448a(9) =3816a(10) =3960a(11) =5544a(12) =6264a(13) =7920a(14) =8496a(15) =11664a(16) =11880a(17) =15120a(18) =15840a(19) =19800a(20) =20592a(21) =25920a(22) =25920a(23) =31608a(24) =33336a(25) =39312a(26) =39960a(27) =48600a(28) =48816a(29) =57600