Adding sequence of data

Hello all, I really need your suggestion to do this code,

I have a vector

a=[1:6]';

I need to add the sequence of elements and store it in another vector.

for i=1:2:5
c=a(i)+a(i+1)
end

a=[1 2 3 4 5 6]';

In 1st iteration : c=1+2

In second Iteration: c=3+4

In third iteration c=5+6

where c stores only one value. I need all the values to be stored in a vector, Ca anyone suggest me a solution

My expected output will be

c=[3 7 11];

Answer 1

[Chunru]

a=[1 2 3 4 5 6]';
c = sum(reshape(a, 2, []))

c = 1×3

3 7 11

[Vasu dev]

Thank you so much.