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A175609
The difference between maximal run length and minimal run length in binary representation of n-th prime.
0
0, 0, 0, 0, 1, 1, 2, 1, 2, 2, 0, 1, 1, 1, 3, 1, 2, 3, 3, 2, 1, 3, 1, 1, 3, 1, 1, 1, 1, 2, 0, 4, 2, 2, 1, 2, 2, 2, 2, 1, 1, 1, 5, 4, 2, 1, 1, 4, 1, 2, 2, 3, 3, 4, 6, 4, 3, 3, 2, 2, 2, 1, 1, 2, 2, 3, 1, 2, 1, 2, 3, 2, 3, 2, 3, 6, 3, 2, 2, 1, 2, 1, 3, 2, 2, 2, 4, 2, 2, 2, 2, 4, 2, 3, 3, 4, 6, 4, 4, 3, 2, 2, 2, 2, 2
OFFSET
1,7
FORMULA
a(n)=A175599(A000040(n)).
MATHEMATICA
rl[n_]:=Module[{spl=Length/@Split[IntegerDigits[Prime[n], 2]]}, Max[spl]- Min[spl]]; rl/@Range[110] (* Harvey P. Dale, Jul 27 2011 *)
CROSSREFS
Sequence in context: A152196 A024375 A025075 * A038717 A073267 A159981
KEYWORD
nonn
AUTHOR
STATUS
approved