OFFSET
1,3
MATHEMATICA
Needs["Statistics`DataManipulation`"]; n=1000; lst=Reverse[Range[2n]]; prms={}; Do[m=lst[[1]]; lst=Delete[lst, 1]; pos=1; While[Not[PrimeQ[m+lst[[pos]]]], pos++ ]; AppendTo[prms, m+lst[[pos]]]; lst=Delete[lst, pos], {i, n}]; First/@Frequencies[prms]
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
T. D. Noe, Jan 26 2004
STATUS
approved