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.
1980–81 Division 1 season (Swedish ice hockey) in the next season. 1980–81 Division 1 season (Swedish ice hockey) 1980-81 was the sixth season that Division 1 operated as the second tier of ice hockey in Sweden, below the top-flight Elitserien (now the SHL). Division 1 was divided into four starting groups, based on geography. The top four teams in the group would continue to the playoffs to determine which clubs would participate in the qualifier for promotion to Elitserien. The bottom team in each group was relegated directly to Division 2 for the 1981–82 season. The second-to-last place team in each group played in a relegation series