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A175810
To calculate n-th term, find all shortest common superstrings of the binary representations of all natural numbers from 1 to n, read them as numbers in base-2, and pick max.
0
1, 2, 6, 12, 52, 52, 116, 232, 1864, 1864, 5960, 5928, 15144, 15144, 31528, 63056, 1008912, 1008912, 6199568, 6199568
OFFSET
1,2
EXAMPLE
a(5)=52 because there are 2 shortest common superstrings of 1,10,11,100,101, they are 110100=52 and 101100=44. Pick 52 because 52>44.
CROSSREFS
Sequence in context: A208147 A369330 A152873 * A083001 A285079 A119862
KEYWORD
nonn,base
AUTHOR
STATUS
approved