%I #2 Mar 30 2012 17:25:50
%S 831,326,267,574,584,257,316,841,158,683,742,415,425,732,673,168
%N A 4 x 4 permutation-free magic square.
%C The magic sum is 1998. For additional details see the paper by Hossin Behforooz.
%D Hossin Behforooz, "Permutation-free magic squares", J. Recreational Mathematics, vol. 33, (2004-2005), pp. 103-106. See Figure 2 on page 104.
%e The magic square is:
%e 831, 326, 267, 574
%e 584, 257, 316, 841
%e 158, 683, 742, 415
%e 425, 732, 673, 168
%Y Cf. A080992.
%K fini,nonn,tabf,full
%O 1,1
%A _Parthasarathy Nambi_, Jan 22 2007