How can I replicate matrix

I have p(x) which has 25 values. I want 640 values in such away that each of p(x)'s are replicated 25 times and the remaining 15(25x25=625) should be added to the last p. I tried this way but not ok

for ii = 1 :length(p);
p2=repmat(p(i) , [1 25]);
end;

thanks for your help.
btw, is there any way of adding the remaining 15 values proportionally.

[José-Luis]

"the remaining 15(25x25=625) should be added to the last p" What does that mean?

[Ede gerlderlands]

I want 640 values . When i REPLICATE i will have 625 values(25x25) and there still remains 640-625=15. This 15 values should be obtained from the last value, i.e.,p(25)should be replicated 40 times.

Answer 1

[Azzi Abdelmalek]

p=1:25
a=repmat(p,25,1)
out=[a(:);ones(15,1)*p(end)]

[Ede gerlderlands]

many thanks