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• 19:09, 6 July 2026 A6P457 talk contribs created page 1RB2RA1RA2RB 2LB3LA0RB0RA (Created page with "{{TM|1RB2RA1RA2RB_2LB3LA0RB0RA}} is the current BLB(2,4) champion blanking the tape after 1,367,361,263,049 steps == Analysis == <pre> A(x,y,z)=1^x 0 1^y B< 2^z A(x,2y,z)->A(0,x,5y+z+1) if x>0 A(0,2y,z)->blank A(x,2y+1,z)->A(x+1,5y+z+1,1) A(1,0,0)->A(0,1,1)->A(1,2,1)->A(0,1,7)->A(1,8,1)->A(0,1,22)->A(1,23,1)->A(2,57,1)->A(3,142,1)->A(0,3,357)->A(1,363,1)->A(2,907,1)->A(3,2267,1)->A(4,5667,1)->A(5,14167,1)->A(6,35417,1)->A(7,88542,1)->A(0,7,221357)->A(1,221373,1)->A...")