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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..20.

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: A292132 A208147 A152873 * A083001 A285079 A119862

Adjacent sequences:  A175807 A175808 A175809 * A175811 A175812 A175813

KEYWORD

nonn,base

AUTHOR

Vladimir Reshetnikov, Sep 08 2010

STATUS

approved

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Last modified February 25 08:33 EST 2021. Contains 341606 sequences. (Running on oeis4.)