Question 951295
{{{(2&2/3)/(2/3)=(8/3)/(2/3)=(8/3)(3/2)=4}}}


{{{(1/6)*4=2/3}}}

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 Common ratio to successive terms is 4.   The X values are offset from a standard reference.


If use as an index, then ...,
easiest to say {{{y=(1/24)4^(n-1)}}}.  Shift this right-ward 2 units.
That would be {{{y=(1/24)*4^(n-1-2)}}}.
{{{y=(1/24)*4^(n-3)}}}


If you are interested in the continuous function, you can come back to your variables,
{{{highlight(Y=(1/24)*4^((X-3)))}}}