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A073141
Product of the largest and smallest number having in binary representation the same number of 0's and 1's as n.
4
0, 1, 4, 9, 16, 30, 30, 49, 64, 108, 108, 154, 108, 154, 154, 225, 256, 408, 408, 532, 408, 532, 532, 690, 408, 532, 532, 690, 532, 690, 690, 961, 1024, 1584, 1584, 1960, 1584, 1960, 1960, 2340, 1584, 1960, 1960, 2340, 1960, 2340, 2340, 2914, 1584, 1960
OFFSET
0,3
COMMENTS
a(n) = A073137(n) * A073138(n).
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Jul 16 2002
STATUS
approved