potential optimisations:

1) remove consecutive entries between a(0)=0 and m-1 where m is the first missing value. This prevents the sieve from growing beyond resources to support it.

2) use an array instead of a hash -- if the index is numeric, it's an array.

3) calculate the rate of growth of the remaining sieve to test for convergence.

One world, one people

In reply to Re: Recamán's sequence and memory usage by anonymized user 468275
in thread Recamán's sequence and memory usage by Athanasius

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