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 two mines laid by "U-625" in the Yugorsky Strait and sank immediately. Only five of her crew of 52 survived. Her next patrol from Trondheim, and lasting from 4 to 8 November, was uneventful. "U-625" departed Trondheim again on 15 November 1943 and headed out into the northern Atlantic, south of Greenland. Having no success, she finally set a course for Brest, France. At 21:38 on 2 January 1944, in the Bay of Biscay, the U-boat was attacked by a Leigh light equipped British Liberator bomber from No. 224 Squadron RAF. "U-625" opened fire with her AA guns and scored