Haruka and Mustafa were asked to find an explicit formula for the sequence 4\,,\,12\,,\,36\,,\,108,...4,12,36, 108,...4, comma, 12, comma, 36, comma, 108, comma, point, point, point. Haruka said the formula is g(n)=4\cdot3^{\large{n}}g(n)=4⋅3 n g, left parenthesis, n, right parenthesis, equals, 4, dot, 3, start superscript, n, end superscript, and Mustafa said the formula is g(n)=4\cdot4^{\large{n-1}}g(n)=4⋅4 n−1 g, left parenthesis, n, right parenthesis, equals, 4, dot, 4, start superscript, n, minus, 1, end superscript.