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 German submarine U-625 U-625 was a Type VIIC U-boat of Nazi Germany's "Kriegsmarine" during World War II. The submarine was laid down on 28 July 1941 at the Blohm & Voss yard in Hamburg, launched on 15 April 1942, and commissioned on 4 June 1942 under the command of "Oberleutnant zur See" Hans Benker. After training with "8th U-boat Flotilla", "U-625" was transferred to "3rd U-boat Flotilla" for front-line service on 1 October 1942. She was soon transferred again, to "11th U-boat Flotilla" on 1 November 1942, then again to "13th U-boat Flotilla" on 1 June 1943, and finally to