Number of reduced 3 X 3 semimagic squares with distinct nonnegative integer entries and maximum entry n.

A173727

Number of reduced 3 X 3 semimagic squares with distinct nonnegative integer entries and maximum entry n.

Terms

    a(0) =72a(1) =144a(2) =432a(3) =1008a(4) =1512a(5) =2592a(6) =3672a(7) =5328a(8) =6696a(9) =9648a(10) =11736a(11) =15552a(12) =17856a(13) =23760a(14) =26712a(15) =33840a(16) =37872a(17) =46512a(18) =51408a(19) =62784a(20) =67824a(21) =81360a(22) =88128a(23) =103680a(24) =111096a(25) =130320a(26) =138384a(27) =159840a(28) =170136a(29) =194400

External references