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.
FS Class 625 Costruzioni Meccaniche di Saronno, and Henschel & Son. A total of 153 class 600 engines were superheated, fitted with Caprotti valve gear and reclassified as class 625 machines between 1929 and 1933. Their class number changed from 600 to 625; they retained the sequential numbering from their original classification, but with the initial number altered to a 3. Thus the original 600 008 became 625 308, for example. After 1933 the remaining unrebuilt 95 class 600 engines were gradually scrapped. The locomotives were designed for mixed-traffic operation (use on both passenger and freight services) and were designed to operate on