Cuban primes: Difference between revisions

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#= 3 /*above are needed for prime generation*/
N= abs(N) /*use absolute value of N from now on*/
if #<N then /* [] ending digs that aren't cubans.*/
do j=4 until #=>N; x= (j+1)**3 - j**3 /*compute a possible cuban*/
parse var x '' -1 _; if !._ then iterate /*check for the last digit*/