6-digit combinations of numbers column A

Hi,

I would like to make all 6-digit combinations possible from the numbers in column A.

And i also would like to add/sum each combination if possible.

See attachment

You are wright.

I made a mistake. In the next example I have a square which represent all the combinations from the number 1 to 45, 8 million give or take.

I would like to sum all these possible 6-digit combination.

So say i have the combination 1-2-3-4-5-6 and this would add up to: (0.89+0.28+0.96+-1.5+-2.5) +(2.03+3.13+2.32+1.56)+(1.68+3,23+-2)+(-2.6+0.27)+(-2.1)

I made it yellow in the attachment