Cody

# Problem 21. Return the 3n+1 sequence for n

Solution 398148

Submitted on 6 Feb 2014 by Davide
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### Test Suite

Test Status Code Input and Output
1   Pass
%% n = 1; c_correct = 1; assert(isequal(collatz(n),c_correct))

2   Pass
%% n = 2; c_correct = [2 1]; assert(isequal(collatz(n),c_correct))

d = 2 c = 2 1

3   Pass
%% n = 5; c_correct = [5 16 8 4 2 1]; assert(isequal(collatz(n),c_correct))

d = 5 c = 5 16 d = 16 c = 5 16 8 d = 8 c = 5 16 8 4 d = 4 c = 5 16 8 4 2 d = 2 c = 5 16 8 4 2 1

4   Pass
%% n = 22; c_correct = [22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1]; assert(isequal(collatz(n),c_correct))

d = 22 c = 22 11 d = 11 c = 22 11 34 d = 34 c = 22 11 34 17 d = 17 c = 22 11 34 17 52 d = 52 c = 22 11 34 17 52 26 d = 26 c = 22 11 34 17 52 26 13 d = 13 c = 22 11 34 17 52 26 13 40 d = 40 c = 22 11 34 17 52 26 13 40 20 d = 20 c = 22 11 34 17 52 26 13 40 20 10 d = 10 c = 22 11 34 17 52 26 13 40 20 10 5 d = 5 c = 22 11 34 17 52 26 13 40 20 10 5 16 d = 16 c = 22 11 34 17 52 26 13 40 20 10 5 16 8 d = 8 c = 22 11 34 17 52 26 13 40 20 10 5 16 8 4 d = 4 c = 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 d = 2 c = 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1