Number of symmetry classes of 3 X 3 magilatin squares with positive values and magic sum n.

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =7a(5) =10a(6) =20a(7) =22a(8) =35a(9) =50a(10) =63a(11) =78a(12) =116a(13) =131a(14) =170a(15) =215a(16) =260a(17) =306a(18) =395a(19) =440a(20) =537a(21) =640a(22) =737a(23) =841a(24) =1025a(25) =1125a(26) =1310a(27) =1507a(28) =1700a(29) =1898