Removing first row of the triangle.
then..

If I add elements of every row (again, except 1st),
I get

2/2

47/2

95/2

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Every row has 2^row_number elements.

2 in some power, usually indicates the number of elements in a power set.

Therefore, If I look at the 3rd row (where the sum is equal to 95/2).
I can interpret this as, there was initially set of 5 elements.
Its power set has 32 elements.

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Now thinking, what these 5 elements can look like,
(and how they relate to the 4 element-set of the previous row).

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I cannot think, of a killer observation here, yet :-). Need to break at 3:21am.