Multimagic square 36, 100, ... Value for Trimagic squares 1, 50, 675, 4624, ... Similarly the tetramagic sequence 4-Power 0, 1, 16, 81, 256, 625, 1296, ... Sum of 4-Power 0, 1, 17, 98, 354, 979, 2275, ... Sums for Tetramagic squares 0, 1, 177, ... The first known bimagic square has order 8 and magic constant 260 and a bimagic constant of 11180. It has been conjectured by Bensen and Jacoby that no nontrivial bimagic squares of order less than 8 exist. This was shown for magic squares containing the elements 1 to "n" by Boyer and Trump. However, J. R.
German submarine U-625 The master and 40 crew members were lost. On 23 November, at 00:56, "U-625" torpedoed the 5,851-ton British merchant ship "Goolistan" of Convoy QP-15, west of Bear Island. The U-boat hit the ship with another torpedo at 01:18, and she sank at 01:45. The master and 41 crewmen were lost. "U-625" arrived at Narvik on 29 November 1942 after 26 days at sea. "U-625"'s next four patrols in the waters north of Norway, between December 1942 and June 1943, were uneventful, and she had no successes. "U-625" sailed from Trondheim on 12 July 1943, and headed north and then east