Number of 4 X 4 pandiagonal magic squares with line sum 2*n.

Terms

a(0) =1a(1) =28a(2) =265a(3) =1392a(4) =5145a(5) =15100a(6) =37681a(7) =83392a(8) =168273a(9) =315580a(10) =557689a(11) =938224a(12) =1514409a(13) =2359644a(14) =3566305a(15) =5248768a(16) =7546657a(17) =10628316a(18) =14694505a(19) =19982320a(20) =26769337a(21) =35377980a(22) =46180113a(23) =59601856a(24) =76128625a(25) =96310396a(26) =120767193