A. 2,6,18,...,162,486,1458. B. 2,4,3,9,4,16,5,...,6,36,7,49,...,64. C. 23 ( 5 ) 6; 24 ( ? )8.
B. 2,4,3,9,4,16,5,...,6,36,7,49,...,64.
C. 23 ( 5 ) 6; 24 ( ? )8.