If you want to add more tests: https://oeis.org/A006884 and https://oeis.org/A006885 contain the relevant sequences.
Why the leading solution size is 0 ? Is it for everyone or just me
@Tanzil Parvez (Emon): the hack solutions (hopefully all) have been deleted from this problem.
How would I speed this up?
If I input nmax = 2^60, my program cannot finish.
This solution will fail for nmax = 2; so I had to swap the order of two lines. See Solution 1088355.
wrong, corrected in soln 329062
Clever pattern, but still gaming the system. This is not the absolute highest Collatz peak as you go to infinity. Yuval, you should be ashamed of submitting this without apologies.
This really doesn't solve the problem it's just gaming the results.
Ooooooh this is evil.
Back to basics 17 - white space
Is this matrix orthogonal?
middleAsColumn: Return all but first and last element as a column vector
Find last zero for each column
Select every other element of a vector
The Goldbach Conjecture
Connect Four Win Checker
Alphabetize by last name
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